Approximately Three-Fourths of All Parasympathetic Fibers Are in Which Cranial

question 26

Multiple Choice

Approximately three-fourths of all parasympathetic fibers are in which cranial nerve?

• A) IX
• B) X
• C) XI
• D) XII

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Definitions:

Symbiosis

Relationship that occurs when two different species live together in a unique way; it may be beneficial, neutral, or detrimental to one or both species.

Community

A group of interacting living organisms sharing a populated environment, which can include various species in a specific area.

Competition

Results when members of a species attempt to use a resource that is in limited supply.

Secondary Succession

The process of ecological regeneration that occurs in an environment where a disturbance has destroyed a pre-existing community but left the soil intact.