Commensalism because commensalism is when one organism benefits from the interaction, and the other is unaffected.
Neurone X should be motor neurone.
Motor neurone should be the type of neurone after relay neurone. Impulses travel from the relay neurone then to the motor neurone, and the motor neurone passes messages for the effectors usually in reflex actions, where effectors can be muscles or glands.
Answer:
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Explanation:
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