Which of These Has a Coelom

question 16

Multiple Choice

Which of these has a coelom?

• A) sea star
• B) roundworm
• C) fluke
• D) planarian
• E) hydra

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Definitions:

Substance P

A neuropeptide involved in pain perception and the inflammatory response within the body.

Endorphin

Natural peptides produced by the brain that act as neurotransmitters to reduce pain perception and lead to feelings of euphoria.

Serotonin

A neurotransmitter that contributes to feelings of well-being and happiness, also involved in the regulation of mood, sleep, and appetite.

Substance P

A neuropeptide involved in the transmission of pain and other sensory signals to the brain, also implicated in inflammatory processes.