OMG THERE'S SO MANY ill make sure to come back at dis and edit
1. Which of the students' observations will be most helpful in classifying a cell as either prokaryotic or eukaryotic? O Shape of the cell. O Presence of a nucleus. Presence of organelles. Visible DNA.
Answer:
B) presence of a nucleus
Presence of a nucleus will be most helpful in classifying a cell as either prokaryotic or eukaryotic. So, the correct option is B.
What are Prokaryotes and Eukaryotes?Prokaryotes are defined as those organisms which possess cells that lack membrane bound organelles. These are usually single cell organisms. Some examples of prokaryotes include bacteria, archaea, and cyanobacteria (blue-green algae).
Eukaryote are defined as those organisms which possess membrane bound organelles. These contain a central nucleus which is surrounded (bound) by a membrane called nuclear envelope. Some examples of eukaryotes include animals, plants, fungi, and protists.
Thus, the presence of a nucleus will be most helpful in classifying a cell as either prokaryotic or eukaryotic. So, the correct option is B.
Learn more about Eukaryotic cells, here:
https://brainly.com/question/17353812
#SPJ6
A man heterozygous for blood type A marries a woman heterozygous for blood type B. What could be the possible blood types of their offspring?
Answer:
Heterozygous A: AO (remember, O type blood is a recessive allele. It's masked by A)
Heterozygous B: BB (h0m0zygous)
AO x BB --> AB, BO
Therefore, the genotypes of their offspring will be 1 AB to 1 BO, while the phenotypes will be 1 AB blood to 1 B blood.
I hope this answer helps you find what your looking for! :)
Answer:
Heterozygous A: AO (remember, O type blood is a recessive allele. It's masked by A)
Heterozygous B: BB (h0m0zygous)
AO x BB --> AB, BO
Therefore, the genotypes of their offspring will be 1 AB to 1 BO, while the phenotypes will be 1 AB blood to 1 B blood.
Explanation:
please mark as brainliest
Johanna took her little brother to the playgrond because he likes to swing
Look at diagram that shows johanna pushing her brother on swing which statement is true about the transformation between kinetic and potential energy while the boy swings?
Answer:
Pls like my answer
Explanation:
I am trying to get point
The periodic table includes groups of elements that have unique and useful capabilities. Such capabilities are due to the properties of the elements—such as ionization energy, atomic radius, and boiling point.
Answer:
boiling point is not among them.
but others we've - Electrons affinity
- Electronegativity
- Electropositivity
Match the phrases below, which relate to photosynthesis, to the category into which they best fit.
Categories: light reactions - light and carbon reactions - carbon reactions
a. produces oxygen
b. produces glucose
c. uses atp
d. produces nadph
e. occurs in chloroplasts
f. produces atp
g. uses water
h. uses nadph
i. requires visible light
Answer: Please see answer in explanation column
Explanation:
---light reactions, also called Photolysis reactions.
Here, after absorbing Light, energy from the sun is being converted to chemical energy bonds which are NADPH and ATP from electrons given off from water as it is being oxidized with the production or release of oxygen.
a. produces oxygen
d. produces nadph
f. produces atp
g. uses water
---Light and carbon reactions
e. occurs in chloroplasts
---Carbon reactions also called Light Independent reactions
Here, energy stored during the light reaction in form of atp and nadph is being used to produce Glucose.
b. produces glucose
C. uses atp
h. uses nadph
Cells require oxygen to complete cellular respiration. What is a role of oxygen in this process?
A. combining with hydrogen atoms to form water at the end of the electron transport chain
B. combining with hydrogen atoms to form water during glycolysis
C. combining with carbon atoms to form carbon dioxide during glycolysis
D. combining with carbon atoms to form carbon dioxide at the end of the electron transport chair
For the effective utilization of glucose in cellular respiration, cells require oxygen, hence option A is correct.
What is the process of cellular respiration?The electron transporter chain in cells needs oxygen to function. It performs the role of the electron transport chain's last electron acceptor, promoting the flow of electrons down the chain and resulting in the production of ATP or adenosine triphosphate.
This is how most creatures get their energy, parts of the glucose molecules that are bound by oxygen release energy, water, and carbon dioxide.
For the effective utilization of glucose in cellular respiration, cells require oxygen, this is how most creatures get their energy.
Therefore, parts of the glucose molecules that are bound by oxygen release energy, water, and carbon dioxide, hence option A is correct.
Learn more about respiration, here:
https://brainly.com/question/1380401
#SPJ5
Which RNA base binds with thymine found in DNA?
If we have thymine on the DNA sequence. The complementary base from RNA is adenine.
What process causes plate tectonics?
A. Conduction currents in the mantle
B. Radiation in Earth's core
C. Reversed polarity across the ocean bottom
D. Convection currents in the mantle
Answer:
It's b,
Explanation:
The process of plate tectonics may be driven by convection in Earth's mantle, the pull of heavy old pieces of crust into the mantle, or some combination of both. For a deeper discussion of plate-driving mechanisms, see Plate-driving mechanisms and the role of the mantle.
How could you increase the potential energy of an object
Answer:
Gravitational potential energy increases as weight and height increases.
Explanation:
This’s because the heavier the object and the higher it is above ground, the more gravitational potential energy it holds.
If the objective lenses of a microscope can be changed without losing focus on the specimen, they are said to be ______. A) equifocal. B) totifocal. C) parfocal.D) optifocal.
Answer:
C) parfocal.
Explanation:
A microscope can be defined as an optical device that is typically used to make an enlarged (magnified) image of a minute (small) object and as such reveals all the little information about the object that cannot be seen by the natural human eye.
A microscope is said to be parfocal if its lense is binocular and they can both be in focus.
Hence, if the objective lenses of a microscope can be changed without losing focus on the specimen, they are said to be parfocal.
What are some characteristics of a tree
Answer:
A woody structure.
A single trunk.
The ability to grow tall.
The ability to increase in all dimensions.
Explanation:
Which of the following statements is TRUE about fiber? A) Fiber is best obtained through pills and other fiber supplements. B) Consuming excessive fiber can increase C) Increases in daily fiber intake should be gradual.D) The typical american diet provides about 25g fiber a day.
Answer:
C) Increases in daily fiber intake should be gradual.
Explanation:
Fiber is the indigestible part of plants and carbohydrates. Beans, peas and lentils are some sources of fiber.
Fiber is best obtained through dried peas and beans and not from pills and the optimal amount of fiber varies with gender, age and pregnancy so there is no fixed diet for fiber and 25 g fiber a day is recommended for adult women and 38 g for adult men.
Increases in daily fiber intake should be gradual because a high fiber diet helps to prevent diseases like heart diseases, diabetes, constipation, and colon cancer. It also smoothens the digestive system and lowers the cholrestrol.
Hence, the correct answer is "C) Increases in daily fiber intake should be gradual."
What are the charges both inside and outside of the neuron before you click the stimulate neuron button?
Answer:
The correct approach is "Negative and Positive".
Explanation:
Just outside of the neurons, the electrostatic interactions seem to be extremely favorable or positive (+) as well as the ion mostly with the greatest proportion was indeed sodium. Throughout intracellular space, a large amount of protein would be negatively charged, or even just potassium channels predominate. Under those same circumstances, the ion channels also seem to be inaccessible.For this specific purpose, this same lying down the neuron, before obtaining a stimulus, introduces positively charged on the external social but instead negative (-) inside though.
Place it Correct spot that’s all tbh
Answer:
All planets have a circular orbit with the sun at the center
Which of the following describes the activity of the sympathetic nervous system?
a. It mobilizes when the body experiences extreme situations.
b. It decreases sweat gland activity.
c. It normalizes digestive activity.
d. It conserves energy.
e. It decreases demands on the cardiovascular system.
Which hormones are produced in the male and female reproductive organs?
testosterone and insulin
estrogen and insulin
testosterone and estrogen
insulin and glucagon
Answer and I will give you brainiliest
Answer:
testosterone and estrogen
Can someone help me :(
Betty is sitting on of her surfboard out in the ocean. She is waiting for the perfect wave to come along so she can ride it in to shore. As she waits, she notices that the waves roll by in patterns, or sets.
. Betty sees a large speed boat pass in the distance. The boat’s motion causes small waves to form and travel outward. What will most likely happen as the larger ocean waves approach the waves created by the boat?
A. The waves will meet and then move in opposite directions.
B. The waves will cancel each other out and make the water flat.
C. The waves will combine and continue moving in the direction of the larger wave.
D. The waves will momentarily create a new wave with a crest higher than the original wave.
Gradual speciation is more likely to be associated with small changes building up in:___________
A. ability to reproduce asexually
B. genes associated with DNA synthesis
C. geographically diverse areas
D. stable environments
Answer:
D. stable environments
Explanation:
In the gradual speciation model, changes in species are slow over time that occur in small steps. Change in speciation rate influences two factors that are environmental conditions and population size.
Gradual speciation mostly occur in large populations that move towards evolution and live in a stable environment. The stable environment provides enough time for the evolution to happen and stable habitat for the new species to grow slowly.
Hence, the correct answer is "D. stable environments".
From which molecules are mRNA molecules transcribed?
A. tRNA
B. rRNA
C. DNA
D. protein
Answer:
C
Explanation:
mRNA molecules are transcribed from DNA molecules. Therefore, option (C) is correct.
Synthesis of mRNA molecules utilising a DNA template occurs during transcription. RNA polymerase and other transcription factors attach to particular sections of DNA known as promoters in the nucleus of eukaryotic cells. The DNA double helix is subsequently unwound by the RNA polymerase, and using one of the DNA strands as a template, it starts to synthesise a complementary RNA strand.
According to the complementary base pairing principles, the RNA polymerase adds nucleotides to the expanding mRNA strand during transcription. While cytosine (C) pairs with guanine (G), adenine (A) in DNA pairs with uracil (U) in mRNA. The mRNA molecule is released and the DNA double helix reforms once the full gene sequence has been read.
Learn more about transcription, here:
https://brainly.com/question/6604811
#SPJ2
Describe a dinner a marathon runner would eat the night before running the Boston Marathon, and give reasons for your food choices.
A dinner a marathon runner would eat the night before running the Boston Marathon would be rice and chicken. Rice has a simple carbohydrate and will build up the ATP in his system to make his run time better and give him energy. Chicken has a long term energy source that will keep him full and his muscles working throughout the marathon.
What is carbohydrate?Carbohydrates has been defied as the contains biomolecule that contains all the carbon hydrogen and oxygen in a same ratio of 2:1. Carbohydrates are main source of the energy of the body they work as the fuel for the brain, kidneys central nervous system and heart muscle.
[tex]Cn(H2O)n[/tex] has the basic formula for all the carbohydrates. But this has formula have limitation i.e it applies where same amount of carbon and water are use.
Initially the terms carbohydrate has been used to describe the compounds that have really contains the carbohydrates. Because they had simple formula [tex]CH20[/tex].
In modern Era carbohydrates has been classified on the basis of their structure not on their formulae. Such as the aldehydes and the ketones are now known as polyhydroxy.
Therefore, A dinner a marathon runner would eat the night before running the Boston Marathon would be rice and chicken. Rice has a simple carbohydrate and will build up the ATP in his system to make his run time better and give him energy. Chicken has a long term energy source that will keep him full and his muscles working throughout the marathon.
Learn more about carbohydrate here:
https://brainly.com/question/14614055
#SPJ2
Prior to 1900, Mendel was:
O Recognized as a geneticist
Recognized as the founder of DNA
O Recognized as a botanist
O None of the above
Answer:
Hi... Before 1900 mendel was working about genetic so your answer is none of the above
Make a listof any four objectivefor food storage
Answer:
apple
grapes
pears
kiwi
Which of the following is the best example of parasitism?
Group of answer choices
A bee collecting nectar from a flower
A tree frog hiding in plants for protection
A tick sucking a deer’s blood
A bird picking bugs off of a cow
Answer:
A tick sucking a deer's blood
Explanation:
All other examples show mutualistic relationships - both species benefit from the relationship. With parasitism the one species benefits (the tick) while the other suffers (deer).
it gathers macules and make them more complex. it also stores them or send them into the cytosol or out of the cell. this organelle also possesses the proteins produced by the endoplasmic reticulum and ribosomes
Answer:
Golgi apparatus
Explanation:
Which of these best describes
incomplete dominance?
Explanation:
When the dominant allele doesy completely cover up the recessive allele and they MIX creating a third phenotype.
Incomplete dominance - dominant allele doesn’t completely mask recessive allele
Organism’s physical appearance shows a mix of both alleles
An organism’s genotype is its?
Answer:
Explanation:
In a broad sense, the term "genotype" refers to the genetic makeup of an organism; in other words, it describes an organism's complete set of genes. In a more narrow sense, the term can be used to refer to the alleles, or variant forms of a gene, that are carried by an organism
An organism's genotype is its genetic makeup. It is made up of the collection of genes that are inherited from ones parents.
What is genotype?Genotype refers to the composition of an organism. It encompasses the collection of genes that are inherited from ones parents. While the genotype establishes the traits of an organism these traits may not always be evident, in the phenotype.
On the hand the phenotype represents the attributes of an organism, including factors like height, eye color and hair color. Although the genotype plays a role in shaping the phenotype it is also subject to influence, from factors.
Learn about genotype here https://brainly.com/question/30460326
#SPJ6
what are the three processes in the central dogma
Answer:
DNA replication
transcription
translation
Explanation:
Hope this helps!
Brain-List?
BUZZ, BUZZ! Oh, what terrible timing. Tom was in the middle of setting up an experiment in lab when his phone indicated that he had a voicemail from his 3-year-old's preschool. He finished up his immediate task and checked his messages. The preschool teacher was calling to let him know that his son, Theo, had a fever of 101.7°F and that he didn't seem to be feeling well and needed to be picked up early. Tom sighed and said he would be right there. He went back into lab, diluted back his bacterial culture, put it in the incubator, and decided to do the experiment tomorrow. When he drove to preschool and picked up Theo, he noticed Theo was lethargic and sad. Tom knew that kids get all sorts of random illnesses, so he took Theo home to see if he could figure out if anything else was wrong. Because Theo was 3 years old, he was able to tell his Dad that his throat hurt a lot as he kept rubbing his throat. Theo didn't seem any to be getting any worse, so everyone went to bed. In the middle of the night, Theo wakes up to vomit (repeatedly) and complains of stomach pain.
Tuesday, March 7, 2017
After a night of not very much sleep, Tom checked Theo's temperature again and saw that it was still high. Now he saw that Theo's cheeks were flushed and there was a rash consisting of pink, slightly raised bumps (no pustules) covering his cheeks, chest, and back. Tom placed a call to the pediatrician to set up an appointment for later that morning.
Required:
a. What disease is the boy likely suffering from? Explain your diagnosis.
b. Name and describe the pathogen that causes this disease.
c. Because Theo is going to be taken to the doctor, is it likely to the fatal? What if the year was 1900? Why?
d. Explain what is causing the rash.
e. If the boy was infected with the same pathogen and had the same signs and symptoms, but did not present with a rash, what would the disease diagnosis be?
f. What treatment would the doctor prescribe? Name one example and describe the mechanism of action
g. The boy was given a prescription and started having diarrhea. Is this normal? Why or why not?
Answer:
find the main idea
Explanation:
Which of these situations is most likely to end in fossilization?
a long life
a slow death
a quick burial
rapid decomposition
Answer:
a quick burial
The most important part: the body has to be buried suddenly, which is rare. Rapid burial can happen due to natural effects, including volcanic eruptions, which bury things in ash, or dying near a flooding stream, which rapidly covers the body in sediment.
Explanation:
Water seeps into the remains, and minerals dissolved in the water seep into the spaces within the remains, where they form crystals. These crystallized minerals cause the remains to harden along with the encasing sedimentary rock.
The structures common to all protozoa are?
Protozoa are unicellular eukaryotes. As in all eukaryotes, the nucleus is enclosed in a membrane. ... The organelles of protozoa have functions similar to the organs of higher animals. The plasma membrane enclosing the cytoplasm also covers the projecting locomotory structures such as pseudopodia, cilia, and flagella
According to the research, the structures common to all protozoa are a group of cells that are identical to each other.
What is protozoa?They are unicellular organisms whose entire body is a single cell, endowed with organelles and diverse structures, which fulfill nutritional, mobile, etc. functions.
The common thing is that protozoa are unicellular organisms of the eukaryotic type that develop in water.
Therefore, we can conclude that according to the research, the structures common to all protozoa are a group of cells that are identical to each other.
Learn more about protozoa here: https://brainly.com/question/2937170
#SPJ2