Answers
2.
Related Questions
The ribosome of the bacterium E. coli includes the ribosomal protein L4 (rpl4). The rpl4 gene carries the instructions for making rpl4 protein. Which of the following arguments provides support for the claim that E. coli has a common ancestor with all other organisms?
A. Every organism depends on proteins to carry out essential cellular processes. Ribosomes are needed by all organisms to synthesize proteins such as rpl4.
B. Every organism possesses in its ribosome a protein that is similar to rpl4. This protein has an amino acid sequence that is similar to the sequence of E. coli's rpl4.
C. Every organism contains a structure that is similar to a ribosome. This structure helps convert the instructions from the rpl4 gene into amino acids.
D. Every organism has proteins made of amino acids. The code for amino acids is the same in E. coli because the instructions for amino acids come from the DNA. DNA contains the same components in all organisms.
Answers
Answer:
B. Every organism possesses in its ribosome a protein that is like rpl4. This protein has an amino acid sequence similar to the row of E. coli's rpl4.
Explanation:
A similar protein with an identical amino acid sequence in the ribosomes of various organisms supports the idea of a common ancestor. Furthermore, this suggests a shared evolutionary history among different species, as conserving such a critical protein implies its importance in the fundamental process of protein synthesis.
The graph below shows a normal distribution for adult body size in a population of a particular species of fish.
Suppose commercial fishers begin using nets that selectively catch larger fish of this species. They continue using these kinds of nets for many years.
(a) Describe how the size distribution of adult fish in the population would most likely change over time.
(b) Explain, in detail, how natural selection would produce the change you described in part.
(c) Even if the use of nets that selectively catch larger fish were stopped, some biologists believe that the size distribution in the fish population would not return to normal. Explain why.
Answers
As the net used by fishermen selectively catches the fish which have a larger body size, the peak of the graph will shift towards the left as the population of small body-sized fish will increase.
The water body contains adult fishes in small as well as large body size and the fishermen start using nets which selectively catch the fishes with the larger body size and they keep using these nets for many years. This will basically result in the higher population of the small sized fish in the water body and the peak of the group will therefore shift towards the left.
The natural selection will also favor the adult fish with the small body size as they have more chances of survival in the given environment over the large sized adult fishes.
To know more about natural selection
https://brainly.com/question/2725702
#SPJ1
Describe the DNA molecule
Answers
Answer:
DNA is made of two linked strands that wind around each other to resemble a twisted ladder — a shape known as a double helix.
Explanation:
s many
embranes
= damages
ar in the
h their
night be
Excessive
s of other
bother bats
een found in
Do European
31
Vocabulary Activity
X
Questions
TT
F
Leah Logout
abc
Sign out
6 Read these sentences from the text:
"As more states and more species are affected, the impact
of WNS could snowball. Bats play an important role in their
ecosystems. [...] Insect-eating bats in the U.S. save farmers
at least $3 billion a year by swallowing bugs that would
otherwise damage crops, according to an analysis in the
journal Science. WNS is just beginning to move into the
Midwest, the nation's agricultural heartland. 'As it continues
to spread, we could see an agricultural impact,' Coleman
says."
What does the word "snowball" in the first sentence mean
here?
8
Apr 24
6:30 INTL
D
Answers
The word "snowball" in the first line of the text means that something is getting bigger and more serious as time goes by.
Why did the author use this word?Because he wanted to make use of the metaphor.Because he wanted to make it easier for the reader to understand.A snowball becomes bigger and more dangerous as time passes and it absorbs more snow. The author realized that this characteristic could be compared with the subject of his text, so he used the metaphor, making a comparison between these two elements.
Learn more about metaphors:
https://brainly.com/question/13020675
#SPJ1
Wetlands are limited to freshwater.
Please select the best answer from the choices provided
T
F
Answers
Answer:
False
hope it helps! byeeee
Non-recombinant
chromosomes
1.) What do the labels above represent? (for example: capital "A" versus lower-case "a", and
the different letters "A or B or C"?
2.) The crossing-over (regional exchange of genetic information) occurs between homologous
chromosomes. WHY is it critical that only homologous chromosomes exchange information?
3. Why is it important that crossing-over takes place between the chromosomes from two
different parents? (answer on back).
Answers
The labels above represent different alleles of genes located on chromosomes. It is critical that only homologous chromosomes exchange information during crossing-over because homologous chromosomes have similar genes in the same order.
The labels above represent different alleles (versions of a gene) that are located on the chromosomes. Capital letters represent dominant alleles, while lower-case letters represent recessive alleles. Different letters represent different genes, and their locations on chromosomes are also different.
It is critical that only homologous chromosomes exchange information during crossing-over because homologous chromosomes have similar structures and genetic content, making it possible for them to align and exchange segments of DNA. If non-homologous chromosomes were to exchange information, the resulting genetic material would be unstable and could lead to genetic disorders or other problems.
It is important that crossing-over takes place between chromosomes from two different parents because it increases genetic diversity in offspring. Each parent contributes one set of chromosomes, and crossing-over allows for the exchange of genetic information between these sets, leading to new combinations of traits. This is important for the survival of a species as it enables adaptation to changing environments and increases the chances of finding new beneficial traits.
To know more about chromosomes here
https://brainly.com/question/14975300
#SPJ1
Which statement best describes how a virus replicates
Answers
The statement best describes how a virus replicates is A) A virus injects its genetic material into the host cell, which then uses the viral genetic material to produce new viruses.
Virus replication involves the process of infecting a host cell and using the host's machinery to produce new viruses. The replication process varies depending on the type of virus, but the most common method is for the virus to inject its genetic material into the host cell.
Once the viral genetic material is inside the host cell, it takes over the host's cellular machinery to produce new viruses. The host cell's normal functions are disrupted as it becomes a factory for producing new viruses. The viral genetic material is replicated, and viral proteins are synthesized, which are then assembled into new virus particles. These new viruses then exit the host cell to infect new cells and continue the replication process.
Therefore, the correct answer is A) A virus injects its genetic material into the host cell, which then uses the viral genetic material to produce new viruses.
To learn more about Virus replication here
https://brainly.com/question/29791314
#SPJ1
The question is incomplete. the complete question is:
Which statement best describes how a virus replicates
A) A virus injects its genetic material into the host cell, which then uses the viral genetic material to produce new viruses.
B) A virus uses its own genetic material to produce new viruses inside the host cell.
C) A virus fuses with the host cell membrane and releases its genetic material into the host cell, which then produces new viruses.
D) A virus undergoes binary fission to produce new viruses inside the host cell.
DDT, once hailed as one of the greatest scientific developments of the modern world, began to fall out of use after 25-30 years of widespread application. Insect resistance contributed to its decline. Scientists were interested in how insects, specifically mosquito populations, were developing resistance after exposure. Many researchers suspected the GSTe2 gene to be involved with resistance based on gene mapping. In order to test their hypothesis, scientists isolated a population of mosquitoes and maintained them in a lab under constant conditions for four months. At the four month mark, the insects were exposed to low levels of DDT daily for an additional four months. At month eight, the population of mosquitoes was split in half and isolated in separate chambers. Half of the population continued to be exposed to low levels of DDT daily for the remainder of the experiment, while half of the mosquitoes were removed and kept in an environment with no DDT exposure for the remainder of the experiment.
DNA samples were taken from the population(s) at months: eight, sixteen, twenty, and twenty-four. The DNA samples were analyzed and tested for mutations to the GSTe2 gene. Vertical bars in the figure represent two standard errors of the mean (SEM). a) Propose a possible hypothesis the researchers were testing. b) Propose an explanation for the results seen after the populations were separated. c) Describe the change in genetic variation over time once the population is split in half. Justify your response based on the SEM. d) When DDT was being used widely, it took approximately 6-7 years before scientists began seeing resistance in mosquito populations. Propose one reason for why it took so long to see resistance in nature in comparison to how long it took to see resistance in this experiment.
Answers
The researchers were testing the hypothesis that the GSTe2 gene is involved in insect resistance to DDT.
The populations were separated suggest that the mosquitoes exposed to low levels of DDT for the full eight months developed a higher frequency of mutations in the GSTe2 gene compared to the mosquitoes that were not exposed to DDT during the last four months of the experiment.
The change in genetic variation over time once the population is split in half shows that the mosquitoes exposed to DDT had a higher frequency of mutations in the GSTe2 gene compared to the non-exposed mosquitoes.
Natural populations of mosquitoes are subject to a variety of environmental factors, including competition, predation, and disease, which can influence the rate at which resistance develops.
DDT was widely used as an insecticide in the mid-20th century to control a variety of insect pests, including mosquitoes that transmit diseases such as malaria and yellow fever. However, over time, many insect populations, including mosquitoes, developed resistance to DDT, rendering it less effective as an insecticide.
The researchers in this experiment were interested in understanding the genetic basis of insect resistance to DDT. Specifically, they suspected that the GSTe2 gene played a role in this process, based on previous gene mapping studies. To test their hypothesis, they exposed a population of mosquitoes to low levels of DDT for four months, after which they split the population in half and continued to expose one group to DDT while keeping the other group in a DDT-free environment.
The results of the experiment showed that the group of mosquitoes exposed to DDT for the full eight months had a higher frequency of mutations in the GSTe2 gene compared to the non-exposed group. This suggests that exposure to DDT may have selected for mosquitoes with mutations in the GSTe2 gene, which provided them with a selective advantage in the presence of the insecticide.
The changing genetic variation over time is evidenced in the graph by the widening of the vertical bars, which represent two standard errors of the mean. This indicates that as time progressed, the genetic variation in the DDT-exposed group increased, likely due to the selection pressure imposed by the insecticide.
To know more about the Population, here
https://brainly.com/question/12472109
#SPJ1
which of the following are considered karst features?
Answers
Natural bridges, Caverns, and Sinkholes are considered Karst features. The correct answers are A B and E respectively.
Understanding KarstKarst is a type of landscape that is formed by the dissolution of soluble rocks such as limestone, dolomite, and gypsum. The dissolution of these rocks can create a variety of distinctive surface and subsurface features, including natural bridges, caverns, and sinkholes.
Natural bridges are formed by the gradual erosion and collapse of the rock around a stream or river, leaving behind a natural arch or bridge of rock.
Caverns are underground chambers that form when water dissolves soluble rocks and creates voids and passages beneath the surface. Over time, these voids can become large enough to form caverns.
Sinkholes are depressions or holes in the ground that form when the surface sediment collapses into an underground cavity or void created by the dissolution of soluble rocks.
Learn more about karst here:
https://brainly.com/question/26696246
#SPJ1
Which of the following is not an activity promoted through environmental activism?
a. conservation
b. corrective justice
c. pollution prevention
d. waste regulation
Please select the best answer from the choices provided
OA
OB
CD
Answers
option b is the correct answer
Explanation:
corrective justice
Risks of biofilm forming organisms in animal production particularly at abattoirs or veterinary hospitals
Answers
The risks of biofilm forming organisms in animal production particularly at abattoirs or veterinary hospitals include the following:
Reduced functionality of disinfectionPersistence of pathogensAntibiotic resistanceWhat are biofilm forming organisms?A biofilm organism is described as an assemblage of surface-associated microbial cells that is enclosed in an extracellular polymeric substance matrix.
Using his simple microscopes, the scientist Van Leeuwenhoek first observed microorganisms on tooth surfaces and can be credited with the discovery of microbial biofilms.
Learn more about biofilm organism at: https://brainly.com/question/29150839
#SPJ1
The ________ of a protein is the specific order of amino acids that makes it up, but it needs to undergo much more modification before it is a finished protein.
Select one:
a.
mRNA
b.
primary structure
c.
tRNA
d.
DNA code
Answers
Answer: B. Primary structure
The primary structure of a protein is the specific order of amino acids that makes it up, but it needs to undergo much more modification before it is a finished protein.
THINK IT THROUGH You may recall that soil is classified by several properties such as color, texture, structure, and pH. Many of the processes that produce soil are related to the activities of living things. Do you think that the types of rocks and minerals found in a particular area could also influence the characteristics of the soil? Explain.
Answers
Answer:
Yes, the types of rocks and minerals found in a particular area can influence the characteristics of the soil. This is because soil formation is a complex process that involves the weathering and breakdown of rocks and minerals over time.
For example, if an area has a high concentration of granite rocks, which are composed of minerals such as quartz, feldspar, and mica, the resulting soil may be sandy or gritty in texture and have a higher pH due to the presence of minerals that do not easily break down. On the other hand, if an area has a high concentration of limestone rocks, which are composed of calcium carbonate, the resulting soil may be alkaline and have a higher fertility due to the presence of easily broken down minerals.
In addition, the type of rocks and minerals in an area can also influence the structure of the soil. For instance, if an area has a high concentration of clay minerals, which are formed from the weathering of silicate rocks such as feldspar and mica, the resulting soil may have a higher water-holding capacity and be more susceptible to compaction.
Therefore, the type of rocks and minerals in an area can have a significant impact on the characteristics of the soil, including its texture, structure, and pH, as well as its fertility and water-holding capacity.
Explanation:
Haven is to sanctuary as____
A) amiss is to awry
B) dominant is to servile
C) fallacy is to truth
D) gullible is to skeptical
Answers
c) fallacy us to truth
it makes the most sense of all of the other options:)
Exploring the Universe Video Worksheet
Introduction
There have been hundreds of missions to space, both manned and unmanned. These missions have provided valuable insights into the universe and our place in it. In addition, advances in technology and communication for space travel have changed how we live and communicate globally. For this activity, you will view two videos about space exploration and technology: The Exploration of Mars and Radio Telescopes. Answer the reflection questions for each video.
Procedures:
Watch the videos: The Exploration of Mars and Radio Telescopes.
Answer the reflection questions for each video.
Some reflection questions ask you to research using internet resources. Be sure to cite the source of your research.
Use your own words when responding to the reflection questions.
Reflection Questions- Video 1
Compare the Viking 1 and 2 probes to the Pathfinder probe that landed on Mars in 1997. How was their technology different?
Mariner 4 and 9 and Viking 1 and 2 probes needed enhanced cameras and wireless communication equipment to take images of Mars's surface and send them back to Earth. According to the video, how did improving our technology lead to new discoveries about Mars?
Using internet resources, describe how advances in imaging and wireless communication for space exploration have led to changes in imaging devices and communication on Earth.
Mars Odyssey and Mars Express required spectrometric equipment that could analyze Mars's atmosphere and surface composition and temperatures. Using internet resources, describe some home or business technologies that use spectrometric equipment to analyze atmosphere or temperature.
Using internet resources, research one space probe described in the video. Describe its goals and justify its purpose by explaining how it helped advance our understanding of the universe.
Reflection Questions- Video 2
What are radio waves?
Describe how radio telescopes function.
What are the advantages of using a radio telescope instead of a reflecting or refracting telescope?
Using internet resources, describe the ways radio waves are used on Earth.
How do radio telescopes help advance our knowledge of our universe?
Answers
While the Viking and Pathûnder probes shared some similarities in their goals of exploring Mars, their technology and designs were significantly different, reflecting advances in space exploration technology over the two-decade gap between their missions
The Viking 1 and 2 probes were sent to Mars in 1975 by NASA to study the planet's atmosphere and search for signs of life. They were equipped with a suite of instruments, including a camera, spectrometers, and a seismometer, and were the first spacecraft to successfully land on Mars. The Pathûnder probe, on the other hand, was sent to Mars in 1997 by NASA to study the planet's geology and search for signs of water.
The technology used in the Viking probes was significantly different from that used in the Pathunder probe. The Viking probes relied on a complex system of onboard computers to control their instruments and communicate with Earth, while the Pathûnder probe used a simplified design with a single computer and a small suite of instruments.
To learn more about Mars follow the link:
https://brainly.com/question/29186894
#SPJ1
The question is inappropriate, the correct question is:
There have been hundreds of missions to space, both manned and unmanned. These missions have provided valuable insights into the universe and our place in it. In addition, advances in technology and communication for space travel have changed how we live and communicate globally. For this activity, you will view videos about space exploration and technology: The Exploration of Mars. Answer the reüection questions for each video
Procedures:
Watch the videos: The Exploration of Mars and Radio Telescopes.
Answer the questions for each video.
Some reüection questions ask you to research using internet resources. Be sure to cite the source of your research.
Use your own words when responding to the reüection questions
Reflection Question- Compare the Viking 1 and 2 probes to the Pathûnder probe that landed on Mars in 1997. How was their technology different?
This histogram shows ranges of possible exam scores and
the number of students who scored within each range.
Based on these data, how many students received a score higher than 95?
Answers
Based on these data, the number of students received a score higher than 95 is 6 or fewer.
Option C is correct.
What is histogram?A histogram is described as an approximate representation of the distribution of numerical data and is the term which was first introduced by Karl Pearson.
Histograms show numerical or quantitative data, whereas bar charts show categorical factors.
The numerical data in a histogram will typically be continuous in most cases having infinite values and would be ridiculous to attempt to plot an axis that included every potential value for a continuous variable.
Learn more about histogram at:
https://brainly.com/question/2962546
#SPJ1
What is the definition of a pure substance?
a being made of only one thing
b Dirt
c Silver
d A combination of things
Answers
Answer:
A combination of things
Explanation:
A pure substance is a single kind of matter that cannot be separated into other kinds of matter by any physical means. A pure substance always has a definite and constant composition. A mixture is a physical combination of two or more pure substances in which each substance retains its own chemical identity.
Hope this helps :)
Pls brainliest...
What happened during S phase ?
Answers
Answer:
S phase is the period of wholesale DNA synthesis during which the cell replicates its genetic content this is also known as the interphase.
HERE’S A BETTER PIC! The question is assume the amount of energy produced by the primary producers was 200 kcal/m2/year? Estimate the amount of energy transferred as you go up the pyramid
Answers
The energy recieved at the top of the pyramid is given as 0.02kcal/m2/year.
What is the energy transferred?We have to know that as we go up the pyramid that the energy that is transferred from one organism to another does decrease in that order. Looking at the image we have, we can see that the organism at the top would only get 0.01% of the energy that the primary producers has obtained from the sun.
The amount of energy that the organism at the top of the pyramid would get is obtained as;
0.01/100 * 200 kcal/m2/year
= 0.02kcal/m2/year
Learn more about energy pyramid:https://brainly.com/question/2515928
#SPJ1
SEQUENCING INFORMATION
One reading skill is the ability to sequence information, or to logically place items or events in the order in which they occur
Sequence the statements below to show the steps in the process of disposing of radioactive wasteWrite "1" on the line in front of the first step, "2" on the line in front of the second step, and so on.
5. Sites are closely monitored
6. Scientists locate a site that will not be damaged by Earth movements.
7Radioactive wastes are stored
8. Disposal facilities are built.
9. Wastes sit for thousands of years
RECOGNIZING CAUSE AND EFFECT
One reading skill is the ability to recognize cause and effect.
Read each question and write the answer in the space provided
10. Name two reasons why incinerators are the most expensive form of waste disposal.
11Why must incinerators be carefully monitored?
12. Why do engineers and geologists try to find disposal sites that are unlikely to be damaged by movements of the Earth?
Answers
Sites are carefully inspected. 8. Refuse facilities are constructed 6. Researchers find a location that won't be impacted by tremors in the earth. 9.
Wastes linger for a very long time. 10. Due to their high energy requirements and strict construction requirements, incinerators are the most expensive way to dispose of trash. 11. Because they release poisonous gases and ash that might harm the air and water, incinerators need to be closely watched in the environment.
12. In order to assure that the trash will be safely confined and not released into the environment, engineers and geologists search for disposal sites that are unlikely to be affected by Earth movement.
Learn more about environment at:
https://brainly.com/question/30821114
#SPJ1
How does friction play a role in the conversion of energy from one form to another
Answers
Friction can play a significant role in the conversion of energy from one form to another by transforming mechanical energy into heat energy. When two surfaces rub against each other, they experience a force that resists their motion, which is known as friction.
This force causes the mechanical energy of the system to be dissipated as heat energy, which is a less useful form of energy for most purposes.
For example, consider the case of a car moving on a road. The car's engine converts chemical energy from gasoline into mechanical energy that propels the car forward. However, as the wheels of the car turn, they experience friction with the road surface. This frictional force causes some of the mechanical energy of the car to be converted into heat energy, which is dissipated into the environment. As a result, the car becomes less efficient in converting its initial source of energy into useful work.
In some cases, friction can be intentionally harnessed to convert energy from one form to another. For example, brake pads on a bicycle or a car can use friction to convert the kinetic energy of the vehicle into heat energy, slowing down the vehicle. Additionally, the conversion of kinetic energy into electrical energy in devices like dynamos or generators can involve friction between moving parts.
To know more about Friction
https://brainly.com/question/13000653
#SPJ1
Precession of Earth's axis causes
A axial tilt
B a change in the North Pole star
C seasons
D day and night
Answers
Precession of Earth's axis causes a axial tilt.
The angle between an object's rotational axis and its orbital axis, which is the line perpendicular to its orbital plane, or, more precisely, the angle between its equatorial plane and orbital plane, is known as axial tilt, sometimes known as obliquity.
Unlike orbital inclination, it is different. The two axes point in the same direction with an obliquity of 0, meaning the rotational axis is parallel to the orbital plane.
The Earth's rotational axis, for instance, is the hypothetical line that traverses both the North and South Poles, while the Earth's orbital axis is the line perpendicular to the hypothetical plane through which the Earth moves as it revolves around the Sun. The angle between these two is known as the Earth's obliquity or axial tilt.
Thus, Precession of Earth's axis causes a axial tilt.
Learn more about Axial tilt, refer to the link:
https://brainly.com/question/28194632
#SPJ1
Define transcription
Answers
Answer:
Transcription, as related to genomics, is the process of making an RNA copy of a gene's DNA sequence. This copy, called messenger RNA (mRNA), carries the gene's protein information encoded in DNA.
Explanation:
questions they will answer on the NJSLA-S.
In question 1, students must select the correct answer that goes in Box Y and the correct answer
that goes in Box Z to receive credit. This type of test question, when taken online, requires
students to choose their answers from a drop-down menu at Box Y and at Box Z.
1. Students observe a worm on the edge of a sidewalk creeping along at a very slow pace. One
student claims that movement in multicellular organisms requires the interaction of body
systems. Explain this claim.
Complete the sentences by selecting the correct answer from each box.
Nerve cells [Y] different parts of the body. As a result, muscular tissues [Z], causing the worm
to move.
Box Y
A. contract and extend
B. remove wastes from
C. send messages to
D. pump blood to
Box Z
A. extend and contract
B. remove waste
C. send messages
D. pump blood
Answers
Answer: box y = c
box z= a
Explanation:
box y is c because nerves send messages from the brain throughout the body. these messages could be pain receptors, messages implying The organism wants to move and so on.
box z is a because muscular tissue is what helps movement. it does not send messages, it doesn't pump blood and does not remove waste.
The NFC of Arctic national wildlife refuge, garage portion of Alaska that is protected from construction, which was affect the land area shirts with available living thing which term is used to describe all species that live in a national wildlife refuge
Answers
The NFC of Arctic national wildlife refuge, garage portion of Alaska that is protected from construction, which was affect the land area shirts with available living thing which term is used to describe all species that live in a national wildlife refuge is wildlife.
What is a wildlife?
wildlife is referred to as the undomesticated animal species, although it now includes all animals that evolve or exist in the wild in an environment free of human intervention.
In the example of Arctic National Wildlife Refuge, the wildlife includes a diverse range of species ranging from polar bears, caribou, muskoxen, wolves, and migratory birds.
Learn more about wildlife at:
https://brainly.com/question/29786011
#SPJ1
Anna is a wildlife photographer. She wants to photograph woodpeckers, snowy owls, and hawks. In which biome can Anna find these birds?
Answers
Anna can find woodpeckers, snowy owls, and hawks in the boreal forest biome.
The boreal forest biome is characterized by its vast stretches of dense, evergreen forests that span across the northern hemisphere. This biome is also known as the taiga, and it is home to a wide variety of bird species, including woodpeckers, snowy owls, and hawks.
Woodpeckers are found in boreal forests due to the abundance of trees, which provide them with habitat for nesting and feeding. The snowy owl is also commonly found in the boreal forest, where it preys on small rodents such as lemmings. Hawks are also known to reside in the boreal forest, where they hunt for small mammals, birds, and insects.
To learn more about biome follow the link:
https://brainly.com/question/1029654
#SPJ1
Janice is studying patterns of water usage. She has collected the following data:
Activity Average Amount of Water Used
by American Households (L)
Bathing (per bath) 130
Showering (per minute) 19
Flushing toilet (per flush) 19
Washing clothes (per load) 72
Washing dishes (per load) 61
Which of the following is an observation that Janice has made?
Answers
The observation which was made by Janice is that six minute showers are basically better for the environment as compared to the baths.
The correct option is option B.
Janice happened to study the patterns of the usage of water and collected data regarding the amount of water which is consumed in an American household in liters.
She made the observation that six minute showers are basically better for the environment as compared to the baths. This is because the amount of water consumed per bath is 130 L whereas the amount of water consumed in a 6 minute shower is about 114 L (19 ×6 = 114).
Hence, the correct option is option B.
To know more about water
https://brainly.com/question/29269560
#SPJ1
--The given question is incomplete, the complete question is
"Janice is studying patterns of water usage. She has collected the following data:
Activity Average Amount of Water Used
by American Households (L)
Bathing (per bath) 130
Showering (per minute) 19
Flushing toilet (per flush) 19
Washing clothes (per load) 72
Washing dishes (per load) 61
Which of the following is an observation that Janice has made?
A. On average, it takes 19 L of water to flush a toilet.
B. Six minute showers are better for the environment than baths.
C. If Americans were to wash their clothes and dishes by hand, they would conserve more water.
D. Bathing requires more water than washing a load of clothes."--
Answer: on average, it takes 61 L of water to wash a load of dishes.
Explanation:
Protein
The diagram shows the behavior of three types of solutes as they attempt to cross a plasma membrane. Which statement best
describes one function of a plasma membrane?
O A. to prevent water from leaving the cell
OB. to regulate what is able to enter or leave the cell
OC. to inhibit viruses from attaching to the cell
O D. to create an impermeable barrier to all substances
O
Reset
Next Question
Answers
The function of a plasma membrane is to regulate what is able to enter or leave the cell. The correct option is B.
Thus, the plasma membrane is a selectively permeable membrane that controls the movement of substances through the cell. It allows gases and small molecules to pass freely through the cell membrane, thereby, regulating the entry and exit of other substances.
However, large substances, such as ions and larger molecules pass through various membrane transport mechanisms. This selective permeability of the plasma membrane maintains the internal environment of the cell and allows it to carry out its metabolic functions effectively.
Thus, the ideal selection is option B.
Learn more about the plasma membrane here:
https://brainly.com/question/14727404
#SPJ1
Can someone help me out with these questions pls
Answers
The correct answer is :
Large surface area for gaseous exchange to take place - c. Millions of alveoli present in each lung.
Diffusion of gases through cell surfaces is facilitated - e. Alveoli and capillaries have a one cell thick wall.
Distance for diffusion is kept short - e. Alveoli and capillaries have a one cell thick wall.
Steep concentration gradient is constantly maintained - d. Each alveolus has a thin film of moisture.
Quick access to the circulatory system - a. Each alveolus is closely surrounded by a network of capillaries.
The lungs contain millions of alveoli, providing a large surface area for gaseous exchange to take place. This large surface area ensures that there is enough space for the exchange of gases between the alveoli and the bloodstream to occur efficiently.
Learn more about alveolar exchange here.
https://brainly.com/question/29354337?
#SPJ1
Hooke and Van Leeuwenhoek made their discoveries around the same time. More than 150 years later, Schleiden, Schwann, and Virchow all made breakthroughs within a few years of each other. Analyze the facts in the text and Figure 3 and form two hypothese about the sudden development of the cell theory after that long pause.
Answers
Hypothesis 1: Advances in technology and microscopy allowed for a better understanding and visualization of cells, leading to the sudden development of the cell theory.
Hypothesis 2: Improved communication and collaboration among scientists in the field allowed for a faster exchange of ideas and discoveries, leading to the rapid development of the cell theory.
The text suggests that there was a long pause between the discoveries of Hooke and Van Leeuwenhoek and the breakthroughs of Schleiden, Schwann, and Virchow. However, it also notes that the latter three scientists made their discoveries within a few years of each other, suggesting a sudden development in the understanding of cells.
One possible explanation for this sudden development is the advancement of technology and microscopy. Hooke and Van Leeuwenhoek made their discoveries using simple microscopes, which had limited resolution and magnification. However, by the mid-1800s, improvements in microscopy technology had led to the development of more powerful and precise instruments, allowing for a better understanding and visualization of cells.
Another possible explanation is improved communication and collaboration among scientists in the field. The text notes that Schleiden, Schwann, and Virchow all made breakthroughs within a few years of each other, suggesting a rapid exchange of ideas and discoveries. This could have been facilitated by the increasing availability of scientific journals and conferences, allowing scientists to share their findings and collaborate more easily.
Overall, both the advancement of technology and improved communication and collaboration among scientists may have contributed to the sudden development of the cell theory after a long pause in progress.
To learn more about cell theory, here
https://brainly.com/question/1468725
#SPJ1