Answer:
Mississippian fossils are abundant in portions of the Midwest and South and include vast beds of limestone and marble.
Explanation:
For example, the domed ceiling of the Jefferson Memorial in Washington, D.C., is made of Indiana limestone that was deposited during the Mississippian Period.By the end of the Carboniferous, reptiles had migrated well toward the interior of Pangea. These early pioneers went on to spawn the archosaurs, pelycosaurs, and therapsids of the ensuing Permian period. (It was the archosaurs that went on to spawn the first dinosaurs nearly a hundred million years later.)
Which of the following processes that absorbed nitrates and ammonia into organic nitrogen? *
Ammonification
Nitrogen fixation
Nitrification.
Nitrogen assimilation
why does the fluid accumulate in our legs and when we sit for a long period of time.
Answer: Gravity: If you spend a lot of time sitting or standing in one place for too long, water naturally pulls down into your arms, legs and feet
Las bacterias son capaces de transferir plasmido De una celula ah otra Mediante la estructura bacteriaNa Cual es esa estructura
Answer:
Pilus.
Explicación:
Pilus es la estructura que se encarga de transferir el plásmido entre las células bacterianas. Un pilus es un apéndice con forma de cabello que se encuentra en la superficie de muchas bacterias y arqueas. Esta estructura de pilus es responsable de la transferencia de plásmido de una célula a otra. Esta transferencia de plásmido de una célula bacteriana a otra se llama conjugación bacteriana, por lo que podemos concluir que el pilus es la estructura o apéndices que causa la transferencia de plásmido.
During sexual reproduction, two gametes (sex cells) fuse to create a fertilized cell (zygote) with a complete set of chromosomes. What must be true about the number of chromosomes in each gamete
During sexual reproduction, two gametes (sex cells) fuse to create a fertilized cell (zygote) with a complete set of chromosomes. What must be true about the number of chromosomes in each gamete is only one set of chromosomes.
Sexual reproduction is a way of developing living things by combining genetic information from two individuals of different sexes through the process of fertilization. Fertilization occurs when an egg and sperm cell meet to produce a zygote.
Chromosomes are a group of fine threads in cells that function as carriers and stores of genetic information in living things. Gamete cells have one set of chromosomes (haploid) consisting of 23 chromosomes with the composition of sperm cells 22 A + X or 22 A + Y and ovum cells: 22 A + X
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Which body system is correctly paired with its function?
Answer:
Circularity-transports material for energy release in body cells
5. Vascular plants have cells that carry water and other nutrients. One special type of
vascular tissue carries water up the plant. What is the name of that type of vascular
tissue?
1.Xylem
2.Phloem
3.Chloroplasts
4.None of the above
02.Un avión de masa 25000 kg se mueve con una aceleración de 3.5 m/s2. Determine la
fuerza que actúa sobre el avión.
Answer:
Force acting on the plane = 87,500 N
Explanation:
Given:
Mass of airplane = 25,000 kilogram
Acceleration of plane = 3.5 m/s²
Find:
Force acting on the plane
Computation:
⇒ Force = Mass x acceleration
⇒ Force acting on the plane = Mass of airplane x Acceleration of plane
⇒ Force acting on the plane = 25,000 x 3.5
Force acting on the plane = 87,500 N
In contrast to transporters, ion channels in cellular membranes .... Group of answer choices interact strongly with the molecules they transport undergo a conformation change with every solute they transport can only mediate passive transport form pores that are always open are always controlled by voltage
In contrast to transporters, ion channels in cellular membranes can only mediate passive transport form pores.
Only in order to open a membrane pore that enables a certain ion into the membrane do channel proteins undergo a conformation in the membrane. In contrast to carrier proteins, the ion will only move along its concentration gradient. It has been discovered that all membrane transport proteins that have been in-depth study are multipass transmembrane proteins, meaning that their transporters chains repeatedly pass through the lipid bilayer. These proteins allow certain hydrophilic solutes to traverse the membrane without coming into touch with the hydrophobic interior of the lipid bilayer by establishing a continuous protein pathway across the membrane.
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help me! for biology and noooo links
Answer:
Exponentional Growth
Explanation:
I did the same thing!!!
Answer:
the correct answer is exponential growth
Arrange the following terms into the order in which a compound must pass through to move from plasma to CSF: -capillary endothelium
-pericyte
-astrocyte
-extracellular matrix
When a compound passes from the plasma to the CSF, it first goes through the extracellular matrix, then the astrocytes, then pericytes, then the capillary endothelium and finally to the CSF.
Cerebrospinal fluid or the CSF is a clear and colorless fluid which is found in the tissues which are present around the brain and the spinal cord. The blood brain barrier or the BBB is the network which consists of tissues and blood vessels which perform the function of keeping the harmful substances away from the brain.
When a particular compound passes from the plasma to CSF, it first has to pass through the extracellular matrix of the ECM. From the ECM, it goes to the astrocytes and then to the pericytes. The compound then passes to the capillary endothelium from where it finally reaches the CSF.
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Cuales son las caracteristicas y organos q desarrolla el embrion y el feto por trimestre
Answer:
Su bebé crecerá más y aumentará de peso más rápido. Sus órganos y partes del cuerpo continuarán desarrollándose. Las uñas de las manos y los pies comienzan a formarse y los riñones comienzan a funcionar. Al final del primer trimestre, su bebé ha triplicado su longitud a aproximadamente 3 pulgadas de largo.
How do snails protect themselves from predators?
Their are various adaptation that helps snail to defend from predators that include cryptic coloration , thickened outer shell . They also produces mucous and irritating smells . They have quick hiding and withdrawal behaviors.
In general ,snails have a hard exoskeleton usually formed from crystalline calcium carbonate. these shells helps to protect snails from predators and some time extreme temperature. In addition they can also help with the defence against nematodes. These shells have many different structures like the one with spiral shapes helps for better hiding from predators .
Snails are also capable of regenerating the broken shell which is also an adaptation strategy .
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19. What do you expect when the cell wall of a plant cell is removed by a certain way, then put in distilled water? a)The cell takes a longer time to swell. b)The proteins that are present in the cytoplasm exit through the cell membrane. c) The cell shrinks. d) The cell bursts. why is the correct answer (d)
The cell bursts when the cell wall of a plant cell is removed by a certain way, then put in distilled water because the cell wall is removed, the cell would get wet, which would cause it to burst..
How do plant cells react to exposure to distilled water?Putting a plant cell in distilled water causes it to become turgid. This is due to a process called osmosis, which causes the plant cell's cytoplasm to swell up and firmly press up against the cell wall as it absorbs water from the hypotonic distilled water.
Cell walls stop excessive endosmosis from happening when water enters the cell, which also prevents plant cells from bursting. If the cell wall were to be broken, water would enter the space and the cell would eventually burst.
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Use the information below to answer the question.
Frequency Frequency Class data Frequency North America
Dominant Allele 0.68 0.41
Recessive Allele 0.32 0.59
What frequency of the class are non-tasters?
Round to the nearest hundredth. Keep answer as a decimal.
Non-PTC tasters in class data:
NO FAKE ANSWERS, PLEASE RESPOND ASAP WILL GIVE BRAINLIEST
Answer:
what do the numbers mean?
Explanation:
Answer:
Its 0.10
Explanation:
I just took the assignment
What axis is the Independent variable located?
Answer:
The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line).
According to the primitive earth model which one of the following compounds was not present in the beginning.
A.NH3
B.H2S
C.CO2
D.O2
The Correct answer is Option D.Oxygen
According to Oparin, oxygen was not present in the primitive atmosphere of the Earth.
What is Oxygen?The chemical element with the atomic number 8 and symbol O is called oxygen. It belongs to the periodic table's chalcogen group, is a very reactive nonmetal, and an oxidising agent that easily produces oxides with most elements as well as other compounds. After hydrogen and helium, oxygen is the third most plentiful element in the universe and the most abundant element on Earth. Two atoms of the element combine to generate dioxygen, an odourless and colourless diatomic gas with the formula O 2 at standard pressure and temperature.
According to researchers at MIT, the Great Oxygenation Event (GOE), which is thought to have started as early as 2.33 billion years ago, was the beginning of oxygen's ongoing presence in the atmosphere.
Oxygen in Primitive EarthLouis Pasteur wrote about his research in 1864, demonstrating that microbial life could not have developed spontaneously in the absence of preceding life. This work is regarded as a milestone in modern science as it resolved a long-running debate regarding spontaneous generation.
The concept of spontaneous genesis holds that live things could appear miraculously from inanimate matter.
But Pasteur's findings presented evolutionary biologists with a fresh conundrum: if life could only develop from life, how did living things first originate on the planet?
The solution was presented in the 1920s by A.I. Oparin of Russia and J.B.S. Haldane of England, who independently made compelling cases that the origin of life could be explained by a lengthy and gradual process of chemical evolution rather than by the rapid spontaneous generation of complete organisms in a matter of weeks.
Elements primitive earthAn atmosphere developed when Earth cooled, primarily from gases released by volcanoes. It contained methane, hydrogen sulphide, and ten to 200 times as much carbon dioxide as the atmosphere we are surrounded by today. The Earth's surface began to cool and solidify after roughly 500 million years, allowing water to accumulate there.
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WILL GIVE BRAINLIST
Instructions: As you complete each slide of the Natural Selection Virtual Lab Activity, please fill in this lab report with the appropriate information and data.
Title:
Include your name, instructor’s name, and the name of the lab
Objective(s):
What is the purpose of the lab
Hypotheses:
Include the if/then statement you developed during the virtual lab.
Variables:
Materials:
The Natural Selection Virtual Lab Activity
Natural Selection Virtual Lab Report
Procedures:
The procedures are listed in Natural Selection Virtual Lab Activity. You do not need to include them here.
Data and Observations:
Table 1: Rabbits in the light-colored environment
Generation
Rate of Survival for White Rabbits
Rate of Survival for Brown Rabbits
1
2
3
4
5
Table 2: Rabbits in the dark-colored environment
Generation
Rate of Survival for White Rabbits
Rate of Survival for Brown Rabbits
1
2
3
4
5
Data Analysis:
Part 1: In your data tables, you recorded the percentage of the rate of survival for both the white and brown rabbit in both the light-colored and the dark-colored environments.
Part 2: Using your percentages in part 1, create a graph that represents the rate of survival for the white and brown rabbits in each type of environment.
Insert chart [Hint: don’t forget to consider the relationship between your data and the type of graph to best represent your data. A bar graph would be the best option to analyze this data.]
Conclusion:
Include the following as a summary paragraph in the conclusion of your lab report:
Analysis of the results of the experiment
Using Table 1, which color rabbit had the higher rate of survival in the light-colored (white) environment? Explain why this occurred.
Using Table 2, which color rabbit had the higher rate of survival in the dark-colored (brown) environment? Explain why this occurred.
What color rabbit seemed to camouflage the best in this snow habitat, and why?
Rationale for the support or rejection of the hypothesis
Questions:
Using what you have learned from the lesson and the virtual lab activity, answer the following questions in complete sentences.
How did the colors of each type of prey affect its population size over time?
How do you predict the data would change if you continued? Explain your answer.
What traits could help a predator be more "fit" to survive in each environment? Be specific.
Describe other adaptations besides color that could affect an individual's survival.
Explain what will happen if there are not enough resources to support the individuals in a species.
This experiment tested natural selection. What could be another possible mechanism of evolution for the rabbits to evolve? Be specific.
Due to their ability to blend in with their surroundings, White Rabbits are more likely to survive than Brown Rabbits.
What is natural selection?The process through which populations of living things adapt and change is known as natural selection. A population's members are naturally varied, which means that they are all distinctive in some ways.
Resources are necessary for a species' growth and survival, therefore if there aren't enough of them to support each member of the species, they can't reproduce.
The adaptations that could affect a person's likelihood of survival are sharp teeth, rough skin, or claws to fight off predators. These adaptations stop them from killing.
As a result, we can draw the conclusion that white rabbits are more likely to survive than brown ones do because they can blend in better with the environment's light colours.
Thus, this can be the summary of the given scenario.
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Explain why the energy available at the top layer of the pyramid is a small percentage of the energy present at the bottom of the pyramid: *
The energy available at the top of the pyramid is a small percentage of the energy present at the bottom of the pyramid because of the process of energy transfer.
As energy flows up the pyramid, each level of the pyramid takes in energy from the level below and uses it to produce its own energy. This energy transfer is not 100% efficient, so some energy is lost at each level. By the time the energy reaches the top of the pyramid, the amount of available energy is greatly reduced.
Additionally, the organisms at the top of the pyramid have to use energy to stay alive and move around, so there is even less energy left to transfer to the next level. This is why the energy available at the top of the pyramid is so much smaller than the energy present at the bottom.
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Please helppp me its due tomorrow’s ‼️‼️ ☹️☹️
I only need help with g. It’s the last one
Thank youuu sooo muchhh
the answer to your question is yes
A
1
2
B
3
C
Circle A includes items that are red, hot, and round.
Circle B includes items that are red, cold, and
square. Circle C includes items that are purple, hot,
and square.
In which area of the Venn diagram above would you
write the word red?
O A. a
OB. 2
O C. 3
O D. 1
Answer:a
a
Explanation:
What are “clean” or “green jobs”?
Answer: I think clean jobs mean one job that doesn't harm the environment, and green jobs are doing work for the enviroment, making the earth look more "green"
Explanation: hope it helped :)
What can be known about Mendel's?
Mendel's five-part hypothesis includes his inheritance laws, and is based on research into genetics and how chromosomes are passed on from generation to generation. The laws of heredity dictate that a gene consists of two alleles of his.
Gregor Mendel discovered the basic laws of heredity through the study of peas. He concluded that genes come in pairs and are inherited as separate entities, one from each parent. Mendel traced the segregation of parental genes and their appearance in offspring as dominant or recessive traits.
Mendel's five-part hypothesis is an answer to a scientific question and is largely based on his research. It identifies his three alleles for each gene, which is the answer to scientific questions and is based on published genetics.
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HELP ME
I WILL GIVE YOU BRAINLIEST
Answer:
I'm pretty sure it would be about 25% chance but i could be long
Explanation:
im sorry if this is wrong
In order to see a recessive trait in an organism's phenotype, what must be the organism's genotype?
Answer:
The organism must have two recessive alleles of the same type. Recessive alleles are usually represented by a lower case letter.
Examples:
rr, hh, bb, aa
Explanation:
This type of a boundary can be located at around 40°N latitude and 0° longitude?
3. Transform plate boundary can be located at around 40°N latitude and 0° longitude. It is a Venezuela region which lies in between South American Plate and Caribbean Plate.
What do plate tectonics entail?Large rock slabs called tectonic plates that separate the Earth's crust move constantly, changing the topography of the planet. According to the system of ideas behind the plate tectonics theory, the lithosphere, which makes up Earth's outer shell, is divided into many plates that move across the rocky inner layer of the planet above its soft core (mantle).
What constitutes a plate boundary?The line dividing two plates is referred to as a tectonic plate boundary. The tectonic plates are constantly and slowly shifting, but they do so in numerous directions. Some are travelling past each other while others are moving in opposite directions.
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Corn seeds with identical genetic information were planted on two adjacent farms. The corn plants on one farm were well fertilized and grew large, while the plants on the other farm were not given fertilizer and did not grow as large. The best explanation for these observations is that
The best explanation for these discernments is that environmental conditions impact quality verbalization.
The vitally immediate reason for biodiversity misfortune is land use change (fundamentally for enormous scope food creation) which drives an expected 30% of biodiversity decline all around the world. Second is overexploitation (overfishing, overhunting, and overharvesting) for things like food, prescriptions, and lumber which cruises all over 20%.
The zygote contains all the data fundamental for the development, improvement, and inevitable multiplication of the organic entity. Human sexual multiplication happens in fundamentally the same as way to other physically replicating creatures.
Corn portions are the products of corn (called maize in numerous nations). Maize is a grain, and the portions are utilized in cooking as a vegetable or a wellspring of starch. The portion involves endosperm, microorganisms, pericarp, and tip cap.
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Describe in your own words the process of gene expression (DNA → RNA → proteins)
Answer: A. DNA is transcribed into RNA, which is translated into protein
Explanation:
The process of gene expression is the information from DNA is transcribed into RNA, then this RNA is translated into protein.
What is gene expression?Gene expression is the process of directing protein synthesis by utilizing the genetic information encoded in genes (DNA). Gene expression enables organisms to develop various cell types and adapt to internal and external influences.
The process of gene excretion takes place in the cell nucleus and cytoplasm and is divided into two stages: transcription and translation.
DNA is employed in the transcription process to create copies in the form of mRNA. While translation is the process by which individual polypeptides are synthesized in the ribosome. Protein can be made up of one or more polypeptides.
Therefore, the information from DNA is transcribed into RNA, which is then translated into protein during the gene expression process.
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Which component in blood is directly related to Hemophilia? Why?
Answer:
Hemophilia is a hereditary bleeding disorder caused by a deficiency in one of two blood clotting factors: factor VIII or factor IX. Several different gene abnormalities can cause the disorder.
Explanation:
The toxic condition caused by excessive amount of urea and other waste products in the bloodstream is known as
Uremia is a toxic accumulation in the blood. It happens when your kidneys quit filtering poisons out of your urine. Uremia is frequently associated with end-stage renal (kidney) illness.
Azotemia and uremia are two forms of renal diseases. When there is nitrogen in your blood, you have azotemia. Uremia is caused by the presence of urea in the blood. They are, however, both linked to renal illness or damage.
Uremia develops when your kidneys are injured. Toxins, or body waste, that your kidneys ordinarily excrete in urine end up in your circulation. These poisons are referred to as creatinine and urea. Uremia is a dangerous illness that, if left untreated, can be fatal.
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How soon after administration of intravenous epinephrine should you pause compressions and reassess the baby's heart rate 8th edition?
It is not advised to stop compressions after administering an epinephrine dose. Every two minutes, the American Heart Association advises stopping compressions to check for the resumption of circulation.
Evidence of what is most effective in reviving patients serves as the foundation for resuscitative care. Best practices for resuscitative care have been outlined in recommendations created by the American Heart Association.
Cardiopulmonary Resuscitation (CPR):
For a person whose heart has stopped, CPR is a technique that involves chest compressions and help breathing.
Although there is a minimal possibility that CPR will restart an arrested heart, it is a tried-and-true technology that saves many lives each year.
In order to ensure that the most people can be saved, the CPR recommendations are consistently reviewed and revised as new knowledge about best procedures becomes available.
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