Reflex Circuits

question 109

Multiple Choice

Reflex circuits

• A) typically involve thousands of neurons.
• B) typically involve one chain of neurons.
• C) typically involve dozens of neurons.
• D) always involve the brain.
• E) involve one neuron.

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Definitions:

Stabilizing Selection

A type of natural selection that favors the average individuals in a population and works against extreme phenotypes.

Positive Selection

The evolutionary process in which genetic variations that are advantageous for reproduction and survival become more common in subsequent generations.

Frequency

The rate at which a particular characteristic or phenomenon occurs within a given population or area.

Fitness

In evolutionary terms, the ability of an organism to pass its genes to the next generation, often measured by the organism's reproductive success.