Researchers Think That the Animal Nervous System Evolved Through the Co-Opting

question 30

Multiple Choice

Researchers think that the animal nervous system evolved through the co-opting of genes with other functions, such as cell-to-cell communication. This is an example of

• A) novel traits.
• B) complex adaptations.
• C) promiscuous proteins.
• D) gene recruitment.

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Definitions:

Refractory Periods

Intervals following an action potential during which a neuron or muscle cell is less responsive to further stimulation.

Neuron

A nerve cell that is the basic building block of the nervous system, responsible for receiving and transmitting information.

Firing Rate

The frequency at which a neuron discharges electrical impulses over a specific period of time.

Multiple Sclerosis

An autoimmune disease affecting the central nervous system, leading to impaired mobility and cognition.