A Keystone Species Is

question 26

Multiple Choice

A keystone species is

• A) the largest species in a community.
• B) the most numerous species in a community.
• C) the least numerous species in a community.
• D) a species on which many other species depend.
• E) the species that occupies most of the niches within a particular environment.

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Definitions:

Perineurium

The connective tissue sheath that encloses each fascicle of nerve fibers within a peripheral nerve, providing support and protection.

Fascicle

A bundle of muscle or nerve fibers bound together by connective tissue.

Epineurium

The outermost layer of connective tissue surrounding a peripheral nerve, providing both protection and support.

Peripheral Nerve

Peripheral nerves are the nerves outside the brain and spinal cord, responsible for relaying information between the central nervous system and the rest of the body.