Members of the Domains Bacteria and Archaea

question 136

Multiple Choice

Members of the domains Bacteria and Archaea

• A) have nuclei.
• B) have chloroplasts.
• C) are multicellular.
• D) are prokaryotes.
• E) have flagella.

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Definitions:

Nerve Fiber

A long, slender projection of a nerve cell, or neuron, that conducts electrical impulses away from the neuron's cell body.

Itching

A sensation that causes the desire or reflex to scratch.

Gate-Control Theory

A theory that suggests pain signals must pass through a "gate" in the spinal cord that can be closed, thus blocking pain signals to the brain.

Neurological Gate

A theoretical mechanism in the nervous system thought to control the transmission of pain signals to the brain.