Why is the cheetah gene pool small today?

Answers

Answer 1

When a natural disaster dropped their total world population down to less than seven individual cheetahs.

Answer 2
Even though the number of cheetahs grew to as many as 100,000 during the 19th century, their genetic variability remained low due to the extreme bottleneck event that took place thousands of years previously.

Related Questions

Which is not a cause of water pollution?
A. chemicals from industrial waste
B. combustion from engines of cars
C. oil spills from boats in the ocean
D. pesticides used in agriculture

Answers

Answer:

D —> pesticides used in agriculture

Explanation:

i believe this should be right as pesticides have no effect on water whilst the others do although im not too sure!

During cellular respiration, acetyl coa accumulates in which location?.

Answers

The mitochondrial matrix

Why does one strand of DNA need to be copied in short fragments?

Answers

Why does one strand of DNA need to be copied in short fragments?

Because the two strands of a DNA molecule have complementary base pairs

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Because DNA polymerase can only synthesize DNA in a 5′ to 3′ direction, the other new strand is put together in short pieces called Okazaki fragments. The Okazaki fragments each require a primer made of RNA to start the synthesis. The strand with the Okazaki fragments is known as the lagging strand.

Hope this helps

Check the three factors that influence population growth. A. Increasing Longevity B. International Migration C. Fertility Rates D. Social media use E. Water supply.

Answers

Population growth is the increase in the population number of a given species in a time. Longevity, migration and fertility rates affect population growth.

What are the factors affecting population growth?

Increased Longevity has impacted the population growth as the life expectancy has resulted in the accumulation of more people as their age of living has increased.

International Migration can affect the population growth positively and negatively as moving of the person from one region will decrease its population growth while the region where they go will have increased population.

Fertility Rates has a great impact on the population as the fertility rate had decreased due to many factors and the population has declined.

Therefore, option A. longevity option B. migration and option C. fertility rates influence the population growth.

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Match each event with its description.


1. Lunar eclipse
2. New moon
3. Solar eclipse
4. Full moon



1. The moon is fully visible to observers on earth
2. The moon lies between earth and the sun, but does not block light from reaching earth
3. Earth blocks sunlight from reaching the moon
4. The moon blocks sunlight from reaching earth

Answers

1. full moon
2.new moon
3.lunar eclipse
4. solar eclipse

removing seeds from cotton plants was a slow job until eli whitney invented the cotton gin what is cotton gin

Answers

a mechanic invented by eli whitney that removes seeds from cotton much more more quickly and effectively than by hand.

Which form of transport requires the expenditure of energy?.

Answers

active transport
During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.

What do the letters outside the punnett square represent.

Answers

Answer:

the letters outside of a punnett square represent the parents genes

How are elements related to the Earth's crust?

Answers

The Earth's crust comprises about 95% igneous and metamorphic rocks, 4% shale, 0.75% sandstone, and 0.25% limestone. Oxygen, silicon, aluminum, and iron account for 88.1% of the mass of the Earth's crust, while another 90 elements make up the remaining 11.9%.

Question 2 of 10 which structure is most likely used for motion?

Answers

i would say B because when the whale slaps his tail, it moves.

Answer:

pretty sure it would be B

Explanation:

Thats the only thing that could possibly be used for moving around. hope this helps you

Pls help with science

Answers

Answer:

number 10 - the plants are the same because you need to have them that way, so it doesn't change anything about the experiment

Explanation what might happen to one plant

might not happen to the other

Heat, acids, bases, salts, or mechanical agitation can unfold, change the shape or ________ proteins but none of these factors changes the primary structure of the protein.

Answers

Heat, acids, bases, salts, or mechanical agitation can unfold, change the shape or denature proteins.

What is Denaturation?

This is common in protein molecules and it involves the breaking of the weak bonds which ensure that the protein's arrangement is highly ordered.

Heat and other chemicals are able to denature protein which is why it was chosen as the most appropriate choice.

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________ slow down transpiration by _________ the stomata Question 8 options: Guard cells; closing Chloroplasts; closing Guard cells; opening Chloroplasts; opening.

Answers

Transpiration is the rate of the water vapour exhalation by the plant cells through its opening pores. The correct blanks are guard cells and closing.

What is the structure of plant cells regulating transpiration?

Plant cells have certain specialized cell organelles that help in maintaining the rate of the carbon dioxide and the water content in their cells.

Stomata of the plant cells are specialized organelles that maintain the water and rate of transpiration by the plants.  They have guard cells surrounding them that regulates their opening and closing.

The guard cells of the stomata form pores of the stomatal opening. The opening and the closing of the pores are regulated by the bulge and the carbon and the water intake and outtake of the cell is maintained.

Therefore, option A. guard cells and closing are the correct blanks.

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what percentage of the water entering the small intesneine is not absorbed during the digestive process

Answers

Almost all ingested food, 80 percent of electrolytes, and 90 percent of water are absorbed in the small intestine. Although the entire small intestine is involved in the absorption of water and lipids, most absorption of carbohydrates and proteins occurs in the jejunum.

The 10% of the water entering the small intestine is not absorbed during the digestive process.

What is the Digestive process?

The digestive process may be defined as a type of process that significantly deals with the organs that take in food and liquids and ultimately break them down into simpler substances so that the body can utilize them for energy production, growth, and tissue repair.

It may be thought that 90% of the water entering the small intestine is absorbed during the digestive process. This percentage of absorbed water constitutes either liquid or solid food. Apart from this, 95% of the carbohydrates and protein you consume are absorbed in the small intestine during the same process.

Therefore, 10% of the water entering the small intestine is not absorbed during the digestive process.

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sugar made in the process of photosynthesis is sent to the mitochondria to produce........

Answers

Explanation:

In a plant cell, chloroplast makes sugar during the process of photosynthesis converting light energy into chemical energy stored in glucose. In mitochondria, through the process of cellular respiration breaks down sugar into energy that plant cells can use to live and grow.

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⊙﹏⊙ please mark me brrenlist

Answer:

In a plant cell, chloroplast makes sugar during the process of photosynthesis converting light energy into chemical energy stored in glucose. In mitochondria, through the process of cellular respiration breaks down sugar into energy that plant cells can use to live and grow.

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.AS YOUR WISH

What roles do the circulatory, and respiratory systems play in ensuring aerobic cellular respiration can provide the energy our cells need

Answers

Answer:

1) transport oxygen to body tissues and carbon dioxide to the lungs.

2) transport glucose from the digestive system to body tissues

Explanation:

Should be one of them if those are your options

List the steps on how seedless plants grow compared to seed plants.

Answers

The difference between seed plants and seedless plants is that seedless plants do not bear seeds for propagation, whereas seed plants bear seeds for multiplication. The plant kingdom is traditionally divided into four main divisions, i.e Thallophyta, Bryophyta, Pteridophyta and Spermatophyta.

PLEASE IN QUICK!!! Why do patients seem to get sicker when they are using chemotherapy and radiation therapy?

Answers

Radiation is really bad for the human body.

Which of the following is not true concerning the Nereus? a. It is able to dive deeper than any other man-made vehicle. B. It will be used to explore previously unreachable areas of the ocean. C. It is a combination automated and remote-operated vehicle. D. It has the capacity to carry two crew members.

Answers

The statement which is not true is it has the capacity to carry two crew members.

The correct option is D.

What is the Nereus?

The Nereus was the underwater vehicle built by the (WHOI).

It was the worlds' deepest diving vehicle.

It was lost one time in deep sea.

Furthermore, it was made to discover the deepest range of the ocean.

Thus, the correct option is D, It is able to dive deeper than any other man-made vehicle.

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Answer:

D

Explanation:

9. A chromosome has the following segments, where * represents the centromere: AB*CDEFG. How would you describe a chromosomal mutation that created this chromosome: ADC*BEFG

Answers

this is a missense mutation

At the beginning of an action potential, ____ ions flow from outside the nerve fiber into the nerve fiber.

Answers

Answer:

Positive Sodium Ions

Explanation:

Positive Sodium is the answer

What is the name given to the
final stage of cellular respiration?
A. Glycolysis
B. ADP
C. The Electron Transport Chain

Answers

Answer:

B

Explanation:

the others don't match.

"Oxidative phosphorylation is the final stage of aerobic cellular respiration. There are two substages of oxidative phosphorylation, Electron transport chain and Chemiosmosis. In these stages, energy from NADH and FADH2, which result from the previous stages of cellular respiration, is used to create ATP."

Driving while sleep impaired is much safer than driving while intoxicated. Please select the best answer from the choices provided T F.

Answers

Answer:

false but both are unsafe

Explanation:

Driving while sleep-impaired is not safer than driving while intoxicated. In fact, it is just as dangerous, if not more so. Hence the statement is false.

Driving while sleep-impaired is a serious problem that can lead to accidents, injuries, and even death. When you are sleep-impaired, your reaction time is slowed, your judgment is impaired, and your coordination is decreased. These factors can all contribute to dangerous driving behaviors.

A study by the National Highway Traffic Safety Administration (NHTSA) found that drivers who are sleep-deprived are 7 times more likely to be involved in a fatal crash than drivers who are well-rested.

The study also found that drivers who are sleep-deprived are more likely to make mistakes, such as drifting out of their lane or failing to yield the right of way.

Therefore, the statement "Driving while sleep impaired is much safer than driving while intoxicated" is false.

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an action that benefits others but not ourselves is an example of:

Answers

Answer:

prosocial behavior

Explanation:

hope it helps

Which statements are true about the phosphorus cycle? Select all correct answers.

A) Phosphate flows from the atmosphere to the geosphere.

B) Phosphorus is stored in only abiotic reservoirs.

C) Weathering releases phosphate from rocks.

D) Phosphate is taken up by producers in aquatic ecosystems.

Answers

Answer:

B) Phosphorus is stored in only abiotic reservoirs.

Explanation:

The true statement about the phosphorus cycle is " Phosphorus is stored in only abiotic reservoirs".

What is the phosphorus cycle?

The biogeochemical cycle known as the "phosphorus cycle" illustrates how phosphorus is changed and moved around in the soil, water, and both living as well as dead organic matter.

What are abiotic reservoirs?

Abiotic storage space is a region of an ecosystem during which a chemical, like carbon or nitrogen, builds up or is stored away from living things.

The true statement about the phosphorus cycle is " Phosphorus is stored in only abiotic reservoirs".

Therefore, the correct statement is an option (B)

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How do transporters and channels select which solutes they help move across the membrane?.

Answers

Answer:

Channels discriminate between solutes mainly on the basis of size and electric charge.

Explanation:

Who designed the labyrinth of king minos in greek mythology?.

Answers

Answer:

Daedalus, (Greek: “Skillfully Wrought”) mythical Greek inventor, architect, and sculptor who was said to have built, among other things, the paradigmatic Labyrinth for King Minos of Crete. Icarus and Daedalus, etching by Giovanni David, 1775; in the Metropolitan Museum of Art, New York City.

Female monarchs lay their eggs exclusively on which plant.

Answers

Answer:

Milkweed

Explanation:

Monarchs become poisonous for ingesting the Milkweed they hatch on, helping them avoid being eaten.


Viruses come in what kind of shapes and
sizes?
A. only square or rectangular
B. only cube or prism
C. many different
D. always spherical

Answers

the answer should be C. many different

Answer:

c

Explanation:

if i'm wrong blame me

A group of scientists studying the DNA of two hominids concludes the hominids have a common evolutionary ancestor. Which of the following would best support the validity of their conclusion? Independent teams reviewing their work and arriving at the same conclusion Explaining their experimental procedures in detail Proposing explanations for evidence that contradicts their conclusion Publication of their research in a popular magazine.

Answers

Independent teams reviewing their work and arriving at the same conclusion BEST support the validity of their conclusions. Revision is fundamental in scientific work.

The process of revision in science

The validation of empirical information obtained by using the scientific method is made by revision.

Reviewers are independent researchers who assess the scientific soundness of an investigation.

Generally, scientific journals send a publication to two or more independent reviewers for its evaluation.

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Answer:

Independent teams reviewing their work and arriving at the same conclusion

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