Figure 23-2 in the Accompanying Figure, the Pair of Organisms

question 23

Multiple Choice

Figure 23-2 In the accompanying figure, the pair of organisms that have the most recent ancestor is:

• A) 2 and 4.
• B) 6 and 4.
• C) 4 and 5.
• D) 2 and 3.
• E) 1 and 2.

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Definitions:

Neuroglial Cell

Supportive cells in the nervous system that provide structural and metabolic support to neurons.

Schwann Cell

A type of glial cell that wraps around nerve fibers in the peripheral nervous system, forming the myelin sheath.

Perineurium

The connective tissue sheath enveloping bundles of nerve fibers within a nerve, providing protection and supporting blood vessels.

Fascicle

A bundle of muscle or nerve fibers enclosed within a sheath.