Which of the following best describes the initial separation event in allopatric separation?
A. Geographic isolation
B. Isolated niche population
C. Partially isolated population
D. Genetic polymorphism​

Answers

Answer 1

Answer:

A. Geographic isolation

Explanation:

Allopatric speciation occurs when one population separates into two geographically isolated populations. The geographic isolation prevents gene transfer and reproduction, allowing for genetic divergence between the two populations.

Answer 2

Answer:

The  Answer is A

Explanation:

hope it helps


Related Questions

In the sporophyte plants produce ________________________?

Answers

Answer:

spores

Explanation:

plant body grows and eventually produce spores through meiosis.These spores divide mitotically to produce haploid (having a single set of chromosomes)

please help meh i will give brainliest

Answers

Answer:

Power has to travel a long distance over power lines to reach cities. Because there is no power plants.

Explanation:

Please tell me if I am wrong! good luck!

Answer:

It is expensive because of the pole and the generator you would have to build.

Explanation:

Thinking about the process of meiosis, how do you think it is possible for gametes to end up with too many or too few chromosomes?

Answers

But an egg or sperm only has one. That one is chosen at random, through a process called meiosis. When meiosis messes up, you can end up with to many or too few chromosomes. One extra chromosome in a egg or sperm means three in the fertilized egg and so trisomy.

Through the process of meiosis, it is possible for gametes to end up with too many or too few if they fail to separate properly.

What is Meiosis?

Meiosis is defined as the specialized type of cell division of germ cells in sexually-reproducing organisms that produces gametes such as sperm or egg cells. This involves two rounds of division which eventually result in four cells with only one copy of each chromosome.

This is called reduction division because the number of chromosomes in the daughter cells becomes half that of the parent cell. For example, a human cell has 46 chromosomes, but the egg and sperm cells produced as a result of meiosis have 23 chromosomes.

If chromosomes split unequally, an egg or sperm may end up with too many or too few chromosomes; when one of these participates in fertilization, the embryo may end up with too many or too few chromosomes.

Thus, through the process of meiosis, it is possible for gametes to end up with too many or too few if they fail to separate properly.

Learn more about Meiosis, here:

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The quantity of matter in an object is a measure of its:

matter
inertia
mass
atoms

Answers

Answer:

the answer is C or mass

Explanation:

Answer:

MAss

Explanation:

what are three things that an ecological pyramid shows that food webs
and food chains do not show.

Answers

Answer:

An ecological pyramid shows energy flowing through different ecosystems, the amount of energy that is being passed down, and the amount of organisms.

Explanation:

The three things that are not displayed by food chain and food web but showed by ecological pyramid are;

Energy flowing through different ecosystems.

Amount of organisms.

Amount of energy that is being passed down.

An ecological pyramid can be regarded as graphical representation that display relationship between different organisms in an ecosystem.

The trophic levels in this ecological pyramid contains amount of organisms as well as mass which is biomass and the amount of energy that can be found in each level.

Therefore, it shows the energy flowing through different ecosystems.

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You have a glass of milk and a glass of water you need to pour them into the same container such that the two liquids are differentiated and can be separated how do you do it?

Answers

Answer:

Pour the water first, freeze it, and then pour the milk. The freezing point of raw unprocessed milk is ∼−0.5 degrees Celsius, so by keeping the barrel under 0 degrees, but above −0.5 degrees, you can keep the water frozen and the milk liquid, and be able to separate them.

You can freeze the whole thing below −0.5 degrees. Just don’t warm it suddenly above 0 degrees without separating the milk first.

In fact, the freezing point of milk can be and is used as a test to check whether water was added to milk by producers.

4. Which of the following is NOT true of the digestive system? a. The stomach contains acids to break down food b. Digestion begins with enzymes in the stomach c. The large intestine absorbs water from the digestion of nutrients d. The small intestine does most of the absorption of nutrients

Answers

Answer:

B. Digestion begins with enzymes in the stomach

Explanation:

The digestive process starts in your mouth when you chew. Your salivary glands make saliva, a digestive juice, which moistens food so it moves more easily through your esophagus into your stomach. Saliva also has an enzyme that begins to break down starches in your food.

Scientists compare the structures of a chicken embryo and a human embryo at the same stage of development. They find that both vertebrates have similar shapes and structures, including the presence of gill slits and tails. How is this comparison of the embryos used as supporting evidence of evolution?
A. The similarities suggest that chickens and humans are the direct descendants of modern-day fish with tails and gill slits.
B. The similarities suggest that vertebrates pass through each of the adult stages of their evolutionary history as they develop.
C. The similarities suggest that vertebrates can undergo genetic changes during development that lead to the evolution of new species.
D. The similarities suggest that chickens and humans descend from ancestors with genes that code for the development of tails and gill slits.

Answers

Answer:

C

Explanation:

Answer:  D. The similarities suggest that chickens and humans descend from ancestors with genes that code for the development of tails and gill slits.

Explanation:

it's right

PLS HELP. CORRECT ANSWER GETS BRAINLIEST
1. While Deena is watching the news on TV, She hears that there going to be a solar eclipse the next day. The news announcer gives advice on how to view a solar eclipse safely, and describes what is happening when a solar eclipse occurs. What causes a solar eclipse to occur?

The Moon passes between the Sun and Earth.

The Sun, the Moon, and the Earth form a right angle.

Earth and the Moon are on opposite sides of the Sun.

Earth and the Moon are at their farthest distance from the Sun.

Answers

Answer:

a)The Moon passes between the Sun and Earth.

Explanation:

Sometimes when the moon orbits Earth, it moves between the sun and Earth. When this happens, the moon blocks the light of the sun from reaching Earth. This causes an eclipse of the sun.

Answer:

The answer is A good luck!

Explanation:

The main function of the human digestive system is to *
a. Rid the body of cellular waste materials
b. Process organic molecules so they can enter cells
c. Break down glucose in order to release energy
d. Change amino acids into proteins and carbohydrates

Answers

B. process organic molecules so they can enter cells

What test is used to determine if the parents are carriers for Prader Willi syndrome prior from pregnancy?

Answers

Answer:

Noninvasive Prenatal Screening (NIPS) also called Noninvasive Prenatal Testing (NIPT)

Explanation:

 hold your hand in front of your face. Look at it with one eye closed. Then with other explain why the image of your hand shifts

Answers

Answer:

when you look at your hand from one eye, then the other, the angle from which you're looking at your hand changes, causing it to look slightly different.

During replication, which sequence of nucleotides would bond with the DNA sequence TATGAC?

Answers

Answer: ATACT

Explanation:

excerpt from History, by Ralph Waldo Emerson
There is one mind common to all individual men. Every man is an inlet to the same and to all of the same. He that is once
admitted to the right of reason is made a freeman of the whole estate. What Plato has thought, he may think, what a saint has
felt, he may feel: what at any time has befallen any man, he can understand. Who hath access to this universal mind is a party to
all that is or can be done for this is the only and sovereign agent.
This passage reflects the ideas of an important philosophical movement in American literature known as
A)
progressivism
B)
realism
symbolism
Transcendentalis

Answers

I think the answer is B

[tex] \bold{RALPH \: WALDO \: EMERSON}[/tex]

Ralph Waldo Emerson was an American writer, philosopher, and poet. Leader of the movement of transcendentalism in the early nineteenth century, his teachings contributed to the development of the "New Thought" movement in the mid-nineteenth century.

✄ -------------------------------------------------------------------------------

[tex] \texttt{ \huge \red{ACTIVITY}}[/tex]

excerpt from History, by Ralph Waldo Emerson

There is one mind common to all individual men. Every man is an inlet to the same and to all of the same. He that is once

admitted to the right of reason is made a freeman of the whole estate. What Plato has thought, he may think, what a saint has

felt, he may feel: what at any time has befallen any man, he can understand. Who hath access to this universal mind is a party to

all that is or can be done for this is the only and sovereign agent.

This passage reflects the ideas of an important philosophical movement in American literature known as

A) progressivismB) realism symbolism Transcendentalis

----------------------------------------------------------------------------------------------

ANSWER

[tex] \red{☆} \blue{☆} \pink{☆}[/tex]B)realism symbolism Transcendentalis

The transcendentalists worked with the feeling that the advent of a new era was at . They were critical of their contemporary society for its unthinking conformity, urging each individual to seek, in Ralph Waldo Emerson's words, "an original relationship with the universe."

----------------------------------------------------------------------------------------------

[tex] \bold{BRAINLY MENTALMENTE}[/tex]

One hot summer day Thomas left a glass of full of water outside when he went back to get it the next day half of the water was gone what type of interaction with the Earth system was this

Answers

Answer:

atmosphere-lithosphere

Explanation:

Hope this helps!

Select the correct answer.
The Punnett square for a sex-linked trait is shown. The recessive trait is carried only by the X chromosome. Xr is the recessive allele. Based on the Punnett square, which statement is true?

Xr X
X XrX XX
Y XrY XY

A.
Female offspring have a 50 percent chance of expressing the recessive trait.
B.
Both male offspring will express the recessive trait.
C.
Both female offspring will express the recessive trait.
D.
There’s a 50 percent chance the male offspring will express the recessive trait.

Answers

Answer:

D. There's a 50% chance the male will express the recessive trait

Explanation:

Because X is dominant over Xr, a female could not express it in this punnett square because she will have the extra X chromosome. While males do not have the extra X so if they receive the Xr they will have nothing to "cover" them.

Answer:

d i just took the test

Explanation:

mention the effects of radioactivity on the environment​

Answers

just like in humans, radioactive material can damage plant tissues as well as inhibit growth. mutations are possible due to damage caused to the DNA. radioactive material in soil can prevent nutrient from being taken in by plants, causing it to be infertile.

If Petal color was a complete dominant trait (A being red petals and a being white), what percent.
of offspring would be red?
hito what percentage of offspring would be red?

Answers

Answer:

75%

Explanation:

3/4ths are dominant, so 75% will be red.

Answer:

75%

Explanation:

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Answers

Answer:

Schwann - animals are made of cells

Virchow - cells divide

Schleiden - plants are made of cells

Hooke - recognized living cells

Leeuwenhoek - observed cells and coined the term "cell"

Brainliest please! :)

a prey population consists of individuals with a variety of running speeds. The adaption that allows some of these animals to run fast would be an example of natural selection if it helps them

Answers

Answer:

Yes.

Explanation:

Yes, the adaption that allows some of these animals to run fast will be cause of natural selection because this fast running helps them to survive and save itself from predators. The organisms adapt certain features and characteristics in order to survive in that harsh environment that leads to natural selection. Natural selection occurs by selecting the best suited organism that can survive in that specific environment so this fast speed allows the organism to survive in their environment.

What happened at the end of the most recent ice age?

Answers

Answer:

What ended the last ice age?

That CO2 then warmed the globe, melting back the continental ice sheets and ushering in the current climate that enabled humanity to thrive. That, at least, is the story told by a new paper published in Nature on April 5 that reconstructs the end of the last ice age.

Explanation:

Hope that this has helped you out! :)

Have a great rest of your day/night!

Please thank me on my profile if this answer has helped you.

What decreases in the water when algae grow quickly?

Answers

Answer:

Fish and other insects

Explanation:

Hope that helps

The fish in the water

What is a Protein Made of?
pls, explain

don´t copy and paste of
what googlle
said plsssssss

Answers

Answer:

The correct answer is - amino acids.

Explanation:

Proteins are made up of amino acids by linking together by the peptide bonds therefore the building blocks of the proteins are amino acids and due to amino acids linked together by peptide bond they called polypeptide chain;

Amino acids are small organic molecules form by the process translation and have a central carbon atom with an amino -NH group, a hydrogen atom, a carboxyl group -COOH, and a side chain.

5. In a rainforest, giant trees normally live for hundreds of
years. However, when they do die and fall to the ground,
hundreds of seedlings will compete to take its place. What
adaptation is most necessary for a young tree to mature in
this environment?
A. The ability to grow vertically at a rapid rate
B. The ability to establish a deep root system while
growing at a slow and steady rate
C. The ability to retain water to survive in drought
D. The ability to grow narrow, small leaves

Answers

Answer:

b

Explanation:

i think im right

please help if you know the answer. IF you could also explain it that would be very helpful but you don't need to as long as you know the answer

Answers

Answer:

Remove waste material, maintaining salt, pH and water balance in the body.

Explanation:

The main function of execratory system is to remove waste material, maintaining salt, pH and water balance in the body. Kidney filters the blood and removes waste material such as urea and nitrogenous waste etc, excess amount of salts and water from the body. It also maintains pH of the body by excretion of hydrogen ions as dihydrogen phosphate or ammonia from the blood and production or reabsorption of bicarbonate ions. So we can conclude that execratory system eliminates waste material, maintaining salt, pH and water balance in the body.

explain the circulation of blood​

Answers

Explanation:

blood comes into the right atruim from the body

Answer:

The circulation of blood is where basically the blood comes or goes into the right atrium from the body, this then moves into the right ventricle and is then pushed into what is called the pulmonary arteries in the lungs of a human. Once it has picked up oxygen, the blood will then travel back to the heart through the pulmonary veins, but this time it will go into the left atrium, so to the left ventricle and including out to the human body's tissues through the aorta.

I hope this helps you

Bob thinks that plants get their materials for growth from the soil. Write a couple of sentences to explain why is Bob incorrect.

Answers

bob is incorrect because plants gets all the materials they need to grow from H2o(water) and air. Sunlight provides energy to help convert water and carbon dioxide

How might the loss of sea ice affect people, animals, or ecosystems?

(Marking as Brainliest for correct answer)

Answers

Answer:

The Global Impacts of Arctic Sea Ice Loss. Some of the most important climate news this winter has been around the alarming lack of sea ice in the Arctic, which has been in decline due to the steady rise in Earth’s average air and ocean temperatures. While suffering polar bears are a poignant symbol of climate change, the effects of disappearing ice extend far beyond the Arctic circle and its inhabitants.

Explanation:

I remember reading and doing a project for this question

Fossils in _______ layers of rock are generally estimated to be _______ than fossils found in the deeper layers. (3 points)

older, younger

newer, younger

older, older

newer, older

Answers

Answer:

Answer number 2

Explanation:

So in Geology, Precipitation of rock layers took place over the last hundreds of millions of years...During that process many living organisms have died and are precipitated with the rock layers... Let me explain with an example.

Dinasours went extinct Million years ago while the Dodo bird went extinct a couple of hundred years ago

Would you expect to find Dinasour fossils in newer rock layers or the dodo? lets's say 200m deep? Dodo for sure, Dinasour fossils are waay too old to be found at such shallow deeps that's why fossils in newer layer of rocks are absolutely younger than fossils found at deeper layers

Older, younger, older older

On East Africa's Serengeti Plains, herbivores migrate across this area following what?
nuts
grasses
rivers
berries

Answers

Answer: Grasses! The north and west crossing the Grumeti River, There where more grass.

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