Evidence exists that during the millions of years in which the Grand Canyon formed, the canyon divided a single population of tufted-eared squirrels into two populations. One of these squirrel populations, the Kaibab squirrel, now lives in isolation from the other tufted-ear squirrels on the North Rim of the canyon. The other population, the Abert's squirrel lives on the South Rim. Some biologists think that the two populations of squirrels have evolved into two separate species. Other biologists think that the Kaibab squirrel is a subspecies of the Abert's squirrel.

Answers

Answer 1

Answer:

A few of the squirrels manage to cross the canyon and breed with the squirrels on the other side.

Explanation:

         The formation of the canyon divide the population of the tufted ear squirrels into two different population or species of the squirrels. One is the Kaibab squirrel which lives in the north Rim of the canyon while the other is the Albert's squirrel that lived in the South Rim.

         The  Kaibab squirrel has a  black belly, white tails and tufted ears while the features of the Albert's squirrel is that it has white belly, white tail and tufted ears.

         Now the factors that could make the evolution or the formation of the squirrel population in two different species less likely is the few of the squirrels might have crossed the Grand Canyon and moved to the other part and breeded with the squirrels there. So both the species have somewhat similar features.


Related Questions

Using the diagram below, identify the correct chemical formula for the molecule
shown.

Answers

I am pretty sure it is b(that’s what I would put) sorry I’m a little rusty on this subject

Answer:

p(OH)30

Explanation:

add the OH all together

ERRE
Which phrase best describes the outer planets?
rocky with few moons
gaseous with slow rotations
dense with few moons
gaseous with low density

Answers

Answer:

Gaseous and low density is the phrase that best describes the outer planets of the solar system.

Let me know if this helps!

Answer: The answer is: gaseous with low density

Explanation: I have my ways ;>

Have a great day!

-Sunny

is the fins are for breathing?

Answers

Answer: yes

Explanation:

Yes

Answer:

Overall, our results demonstrate that the pectoral fins are capable of ventilating cutaneous surfaces and dissipating Po2 boundary layers, thus supporting the role of the pectoral fins as respiratory structures in larval fishes.

Which statement describes how to appropriately handle live

Answers

Can you give me examples of the different statements??

Which of the following is true during the autumn?
O A. Sunset gets later each day.
O B. Sunrise gets earlier each day.
O C. More hours are added to the day.
O D. Sunrise gets later each day.
SUBMIT

Answers

Answer:

the only decently right answer would be C.

Explanation:

I don't think any of these actually have to do with autumn, but I guess C is the best answer

Answer: answer d on apec

Explanation:

Question 7
0.5 pts
When does DNA replication occur
before the cell divides
O during cell division
O after the cell divides
O before protein synthesis

Answers

Answer:

I think your answer will be out of the cell divide

Which process occurs in all living organisms at all times?
O cellular respiration
aerobic respiration
anaerobic respiration
O photosynthesis

Answers

Answer:

It is:

A. Cellular Respiration

Explanation:

took the test

3. Any spread of particles from area of high concentration to area of lower 1 point
concentration. This question has more than one answer. *
Diffusion
Active Transport
Osmosis
U Phagocytosis
Passive Transport
Facilitated Diffusion
Pinocytosis
Receptor-Mediated endocytosis
Exocytosis

Answers

Answer:

Diffusion

Osmosis

Passive transport

What is the most common gas in Earth's atmosphere?

a
Carbon Dioxide
b
Oxygen
c
Nitrogen
d
Hydrogen

Answers

Answer:

answer number A carbon dioxide

Answer:

a

Explanation:

carbon dioxide is a common gas

Drag each item to indicate whether it supports ocean acidification or ocean warming. (2 points)

Ocean Acidification Evidence

Ocean Warming Evidence

:: expansion of ocean volume

:: difficult for some species to make shells

:: larger concentration carbonic acid

:: melting of glaciers and ice caps

growing difficulty in absorbing carbon dioxide

:: organisms more prone to illness

Answers

Answer:Ocean Acidification Evidence: Difficult for some species to make shells , larger concentration, organisms prone to illness . Ocean warming evidence: Melting of glaciers, expansion of ocean volume, growing difficulty in absorbing

Explanation:

Ocean Acidification Evidence includes difficult for some species to make shells , larger concentration, organisms prone to illness. Ocean warming evidence encompasses melting of glaciers, expansion of ocean volume, growing difficulty in absorbing.

What is ocean acidification?

The massive amount of carbon dioxide absorbed by the ocean dissolves as carbonic acid in seawater.

This is known as ocean acidification, and it is literally causing a sea change that is threatening the basic chemical balance of ocean and coastal waters from pole to pole.

As greenhouse gases trap more solar energy, the oceans absorb more heat, resulting in higher sea surface temperatures and rising sea level.

Ocean acidification is the decrease in pH of ocean water caused by CO2 dissolution in water.

Ocean warming, on the other hand, is the long-term gradual increase in the average temperature of the Earth's atmosphere. Ocean acidification and global warming are both negative consequences of human activity.

Acidification of the Oceans Evidence: It is difficult for some species to make shells, there is a higher concentration, and organisms are prone to illness.

Melting glaciers, increased ocean volume, and increasing difficulty absorbing are all signs of ocean warming.

Thus, this is the match for the given scenario.

For more details regarding ocean acidification, visit:

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If you have the frequency of the recessive allele for a gene, how do you get the
frequency of the dominant allele?

A)Multiply the frequency by the size of the population.

B)Subtract the frequency of the recessive allele from 1.

C)Take the square of the frequency of the recessive allele.

D)Take the square of the frequency of the dominant allele.

Answers

B. subtract the frequency of the recessive allele from 1.

2 When molecules are spread evenly across the cell ________ membrane,
is reached.
a equilibrium
b. difference
C. solution
d. transportation

Answers

i think its transportation not for sure

Answer:

The answer is A. Equilibrium

Explanation: And I know it's a Equilibrium because I got it right the the quiz hopes this helps :) mark brianlest pls

HELPPPPP Some factories that burn coal produce smoke with harmful chemicals, such as sulfur. Scrubbers are devices that are attached to the smokestacks to reduce the amount of sulfur put into the atmosphere. To evaluate the effectiveness of these devices, what data would need to be collected?

A. The percentage of sulfur contained, on average, in a certain amount of coal

B. The amount of coal a factory burns each year, and how much sulfur it emits

C. The increase, over time, in the use of scrubbers by factories that burn coal

D. The amount of sulfur emitted by a smokestack before and after the scrubber is attached

Answers

Answer:

D. The amount of sulfur emitted by a smokestack before and after the scrubber is attached

To evaluate the effectiveness of these devices, the data would need to be collected is the amount of sulfur emitted by a smokestack before and after the scrubber is attached. The correct option is D.

What are scrubbers?

Scrubbers are devices for reducing air pollution that employ liquid to filter out gases or particles from an industrial exhaust or flue gas stream. To effectively remove particles and polluting gases from the gas flow, this atomized liquid (usually water) entrains them.

Wet scrubbers are tools that use direct contact with a liquid spray to capture suspended particles. As the many small droplets in the spray collide with and entrain the particulates, a scrubber effectively washes the contaminants out of the contaminated air stream.

Therefore, the correct option is D.The amount of sulfur emitted by a smokestack before and after the scrubber is attached.

To learn more about scrubbers, refer to the link:

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What are the different types of granulocytes? Select all that apply.

basophils

T-cells

eosinophils

monocytes

neutrophils

Answers

There are four types of granulocyte;

Explanation:

basophils, eosinophils, neutrophils and mast cells.

The different types of granulocytes are: basophils (option A), eosinophils (option C), and neutrophils (option E). Granulocytes are a type of white blood cell that are characterized by the presence of granules in their cytoplasm.

What are granulocytes?

The three types of granulocytes are basophils, eosinophils, and neutrophils such as basophils are the least common type of granulocyte. They are characterized by their large, dark-staining granules and play a role in allergic reactions and inflammation. Basophils release histamine, which causes blood vessels to dilate and become more permeable. Eosinophils are the second-least common type of granulocyte, and neutrophils are the most common type of granulocyte. They are characterized by their small, pale-staining granules.

Hence, the different types of granulocytes are: basophils (option A), eosinophils (option C), and neutrophils (option E).

Learn more about the granulocytes here.

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PLS SOMEBODY HELP!!!!
Then they want us to name 4 mRNA bases for the codon

Answers

Answer:

It was also known that there are only four nucleotides in mRNA: adenine (A), uracil (U), guanine (G), and cytosine (C).

Explanation:

I hope this helps :)

In what layer would you expect to find fossils most like the animals alive today?
pls explain ​

Answers

Answer:

Not sure

Explanation:

Blood Types;
A man with type O marries a woman with type AB.
Several children were born.

1. What is the genotype of the man?
2. What is the genotype of the woman?
3. True or false? the mother of the man had type AB blood.
4. Could the mother of the woman have type O blood?
5. what fraction of offspring would have type B blood?
6. what fraction of the children would have type AB blood?
7.Could this couple have a child with type O blood?

Please answer all parts of the question!

Answers

1.ii
2.AB
3. False only ii can have i baby or two recessive genes like Ai and Bi
4. No you have to have to have A and B present to have a AB baby.
5.50%
6.0% they would either be Ai or Bi
7. No O blood is recessive.

Describe and explain the abiotic and biotic factors that may affect the numbers or distribution of organisms in their habitats.

Answers

Answer:

The biodiversity and distribution of organisms within an ecosystem is due to both abiotic (non-living) and biotic (living) factors. Abiotic factors are non-living variables that can influence where organisms can live. Examples of abiotic factors include: light intensity.

Explanation:

Is Sustainable development possible? Is sustainable development worth try to achieve? Why?Why not?

Answers

Answer:

Yes Sustainable development possible


A population of lizards lived in an ecosystem that was prone to flooding. After many generations, most of the lizards in the population had
longer legs than their ancestors, which helped them flee from floods. Which statement best explains this change?

A: the lizard genes spontaneously mutated to address the flooding threat

B: Genetic variation among lizard limbs allowed for natural selection to occur

C: The limbs were artificially selected because humans probably caused the flooding

D: The lizards with longer limbs cloned themselves, ensuring survival of the species
ILL MARK BRAINIEST PLS HELP

Answers

Answer:

B

Explanation:

Adaption occurs though natural selection and genetic variation


B: Genetic variation among lizard limbs allowed for natural selection to occult

Yeast that is commonly used in bakery and beverage industries belongs to which group of microorganism?

Answers

Answer:

Fungi

Explanation:

Yeast is a microorganism that has found great use in industries as it is used in the bakery and beverage industries. This use of yeast can be attributed to its ability to undergo alcoholic fermentation process in absence of oxygen.

Yeast as a living or biological eukaryotic organism that belongs to a kingdom called FUNGI. Yeast causes dough to rise in bakery due to the synthesis of CO2 via fermentation.

What is the meaning of the term disturbance?
Group of answer choices

an event that makes a species extinct) A

an event that changes a community) B

an event that decreases resource availability) C

an event that kills organisms) D

Answers

Answer:

B

Explanation:

7. In which direction does water move through a plant?

A. Upward from the roots

B. Sideways through the leaves

C. Downward from the leaves

Answers

Answer:

A. Upward from the Roots

Answer:

The water Moves through a plant UPWARD FROM THE ROOTS.

Explanation:

When we water the plant, we water from the root and the water goes up in the plant and that's how the every part of the plant is fully watered.

Connor placed a piece of celery plant in a cup of colored water. The diagram shows the results of the experiment.



Which structure in the celery plant was most likely responsible for making the leaves turn red?
phloem
pollen
embryo
xylem

Answers

Answer:

xylem

Explanation:

The xylem is responsible for the transport of water.

Answer:

XYLEM is the answer for you :)

Explanation:

Please put in order for a food chain.

Answers

Answer: C) The benthic invertebrates would decrease in population size because they are eaten by the sea ducks and the phytoplankton would increase in population size.

Explanation:

The benthic invertebrates are eaten by sea ducks. Sea ducks are eaten by bald eagles. If the bald eagle was removed, there would be more sea ducks because they will have no more predators. Since there are more sea ducks, they will need to eat more food, like benthic invertebrates. The benthic invertebrates would have a lower population because the sea ducks eat more of them.

Why not the other answers:

A) The bivalves would not increase in population size. Without the bald eagle preying on sea ducks, there would be more sea ducks, who need to eat more food, such as eating more bivalves.

The phytoplankton would not decrease. With sea ducks eating more food, more benthic invertebrates are eaten. There would be less benthic invertebrates to eat phytoplankton.

B) Tundra swans were never eaten by bald eagles. There is no arrow connecting them.

D) Wading birds were never eaten by ospreys. There is no arrow connecting them.

Explanation:

Please help!
2. Which is not true about meiosis? A. The chromosomes in the daughter cells are half the number from the parent cell. B. The chromosomes in the daughter cells are the same number as the parent cell. C. The only cells that will undergo meiosis will become sperm or egg cells used for reproduction.
D. The shuffling of genes happens in meiosis.​

Answers

Answer:B

Explanation:even if she is the daughter that doesn’t mean she will have the same chromosomes. Everyone in this world has different chromosomes even twins

2 ways to change the rate of a chemical reaction

Answers

Answer:

Increase the concentration of a reactant.

Increase the temperature of the reactants.

please help!!!!!!!!!!!!!!!!!!!!
i will award the best answer with brainlyist

Answers

B is the answer, the low pressure doesn’t form from unequal heating
the answer should be b

HELP PLEASE! Why is it very unlikely for a frameshift mutation to be a silent mutation?

Answers

Answer:

Explanation: A frameshift mutation completely changes the genetic code from the point of the mutation, so the protein made as a result of the mutation would have the incorrect structure and would not function as it should.

how is mitosis important for sexual reproduction?

Answers

Mitosis is important for sexual reproduction indirectly. It allows the sexually reproducing organism to grow and develop from a single cell into a sexually mature individual. This allows organisms to continue to reproduce through the generations.
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NEED HELP NEED HELP FOR 11 POINTS Find the equation of the line that contains the points whose coordinates are (3, 2) and has slope -1/2 Lewis and Clark NotesUsing a 6 column format, take notes on the PEOPLE, PLACES, GEOGRAPHICAL FEATURES, ANIMAL DISCOVERIES, CHALLENGES, and INTERESTING FACTS that you learn about. Where was located the Indus valley civilization? Two-fifths of one less than a number is less than three-fifths of one more than that number. Whatsolution set of this problem?x - 5x>-1X lcm of 30,90 and 315 I'll have ________ the cheesecake and the apple pie.Select the best word to complete the sentence. both either neither whether In a bowl that has 12 jolly ranchers candies, there are 3 Yellow 5 Red and 4 Green. you pick two of these Jolly Ranchers from the bowl WITHOUT REPLACEMENT.1 find the probability that both candies are red? PLEASE HELP ASAP!!!!!! Guys pls help me!!!!!!! You have 1 1/2 moles of 1 kg bottles of O2. What is the mass of O2 that you have? A. 9.033x10^23 kg B. 9.033x10^23 atoms C. 1.80x10^27 kg D. 1.806x10^24 moles 18. When the hitting face of the paddle is turned up its called? Can someone pls help I'm very confused 10(1/2 d+3m) +3d(5) Please helppppp and I will mark you Brainliest A = 2^3 x 3 x 5B = 22 x 3 x 52(b) Write down the highest common factor (HCF) of A and B. PLEASE ASNWER ASAP WILL MARK BRAINLIEST! Even though Charlotte hasn't actually talked to Captain Jaggery, she thinks he is a gentleman. What can readers inferabout Charlotte based on this decision?A.) She thinks Captain Jaggery's nice clothes show he is a nice person.B.) Appearances aren't as important as actions.C.) She thinks her father would disapprove of her being on the Seahawk.D.) Actions speak louder than words. Where is the Yellow Sea?O a) 2Ob) 6O c) 7O d) a Which statement best expresses the American value of equality?a.The family in which you belong should determine your rights.b.Members of some groups should more rights than others.c.The leaders of society should determine rights for everyone.d.All members of society should have the same basic rights. will mark brainliest please help Which function represents g(x), a reflection of f(x) = 4() across the x-axis?