BIOLOGY HIGH SCHOOL

The Earth's biodiversity is determined by the variety of all living organisms on Earth. In recent years, ecologists and other scientists have encouraged the preservation of global biodiversity through the protection and management of natural ecosystems.Preserving the biodiversity of the Earth is important because
A. biodiversity increases ecosystem stability for a given type of ecosystem.

B. ecosystems are highly interconnected and the removal of even a few species can cause ecosystem disruption.

C. the diverse organisms of Earth's ecosystems provide services for humans that humans cannot replicate.

D. all of these

Answers

Answer 1
Answer: The answer is D because all of them are true. Biodiversity stabilizes an ecosystem, they are highly interconnected, and we can not replicate many forms of life.
Answer 2
Answer:

Answer:

Answer choice D

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A new food source from the crossing of wheat and rye is called .

Answers

Triticale

Wheat is the mother, rye is the pollinator

SOS:

The answer is triticum!

Hope this helps!!

Which of the following ideas is supported by Darwin's observations of local variation among tortoises in the Galapagos islands?A: artificial selection
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Answers

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Answers

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A spherical bacterial cell has a radius of 3μm . The human egg cell has a radius of 100μm . Which statement correctly indicates the cell that is able to more efficiently exchange materials with the external environment and provides a correct explanation?

Answers

Answer:

The correct statement would be - the bacterial cell due to the largest surface-to-volume ratio.

Explanation:

The surface area to volume ratio plays a very important role in determining the rate of the diffusion enter and exit from the cell body. If the surface-to-volume ratio is lower then the rate of diffusion would be lower to similarly with an increase in the ratio, the rate of diffusion also increases.

So, the bacteria like small organism have a cell which is exposed to a large surface area to the surrounding in comparison of the human egg cell.

Thus, the correct answer would be - the bacterial cell due to the largest surface-to-volume ratio.

Final answer:

A smaller spherical bacterial cell with a radius of 3μm can more efficiently exchange materials with the external environment compared to a larger human egg cell with a radius of 100μm, due to its higher surface area-to-volume ratio.

Explanation:

The statement that correctly indicates the cell that is able to more efficiently exchange materials with the external environment is that the spherical bacterial cell with a radius of 3μm can more efficiently exchange materials. This is because a smaller cell has a higher surface area-to-volume ratio, allowing for a faster exchange of materials through the cell membrane. On the other hand, the human egg cell with a radius of 100μm, being larger, has a lower surface area-to-volume ratio and is less efficient in exchanging materials with the external environment.

Learn more about bacterial cell here:

brainly.com/question/21374866

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A stimulus triggers the body to create a response that feeds back to reverse the changes caused by the original stimulus. What is this process called?A. positive feedback loop
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Answers

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