A Nerve Impulse Results from a Change from a Resting

question 59

Multiple Choice

A nerve impulse results from a change from a resting potential to a(n) ____.

• A) electropositive summation
• B) action potential
• C) electrostatic dissipation
• D) excitatory postsynaptic potential

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Definitions:

Chitin-Hardened Jaws

Structural feature referring to jaws strengthened by chitin, a fibrous substance forming the exoskeleton of arthropods and other organisms.

Marine Polychaetes

A diverse class of annelid worms, commonly known as bristle worms, that live in various marine environments.

Chitin-Reinforced Bristles

Stiff bristles made stronger with the natural polymer chitin, commonly found in the exoskeletons of arthropods.

Chitin-Hardened Tentacles

Tentacles strengthened by chitin, a polysaccharide found in the exoskeletons of arthropods and cell walls of fungi.