Nemerteans Differ from Nematodes in That They

question 23

Multiple Choice

Nemerteans differ from nematodes in that they

• A) Are all suspension feeders
• B) Have many nonmarine representatives
• C) Are all carnivores
• D) Live in the deep sea only

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Definitions:

Endorphins

Natural pain-relieving neurotransmitters produced by the brain in response to stress or discomfort, often associated with a feeling of well-being.

GABA

Gamma-Aminobutyric Acid, a chief inhibitory neurotransmitter in the central nervous system, playing a key role in reducing neuronal excitability.

Anandamides

Naturally occurring compounds in the body that bind to cannabinoid receptors, influencing mood, appetite, and pain perception.

Dopamine

A chemical messenger that plays a critical role in controlling mood, motivation, pleasure, and reward sensations.