Population Regulation Is Related to Darwin's Theory of Evolution by Selection

question 27

Multiple Choice

Population regulation is related to Darwin's theory of evolution by selection because

• A) populations achieve stability.
• B) selection is generally top-down.
• C) selection is generally bottom-up.
• D) populations growth is limited.
• E) none of the above

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Definitions:

Axons

Long, thin fibers that are part of nerve cells (neurons), responsible for transmitting electrical impulses away from the neuron's cell body.

Myelin

A fatty substance that insulates the axon and allows it to send nerve impulses quickly.

Schwann cells

Specialized cells located in the peripheral nervous system, responsible for the formation of myelin sheaths around neurons, facilitating rapid signal transmission.

Axons

Long threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells.