Which Statement Is True Regarding Upper Motor Neurons

question 43

Multiple Choice

Which statement is true regarding upper motor neurons?

• A) Upper motor neurons directly influence muscles.
• B) They modify spinal reflex arcs.
• C) Upper motor neurons are located in the gray matter of the spinal cord.
• D) They extend their dendritic processes out of the CNS.

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Definitions:

Separate Identities

The concept of distinguishing or individualizing characteristics that make a person, group, or entity distinct from others.

Reproductive Isolation

A collection of mechanisms, behaviors, and physiological processes that prevent the members of two different species that cross or mate from producing offspring, or ensure any offspring are sterile.

Mating Patterns

The behaviors and strategies organisms use to find, select, and mate with partners, which can vary greatly among species.

Gamete Incompatibility

A reproductive barrier where gametes (sperm and egg) from different species fail to attract each other or function properly, preventing fertilization.