As the Editor of a Textbook Dealing with Signalling in Animals,which

question 19

Multiple Choice

As the editor of a textbook dealing with signalling in animals,which statement would you remove?

• A) Both the nervous system and the endocrine system use neurotransmitters to affect target cells.
• B) A nerve impulse is virtually instantaneous, but hormones take from seconds to hours to exert their effects.
• C) Hormones and neurotransmitters may share the same target cell.
• D) A single neuron influences only a few cells at a time, whereas hormones circulate throughout the body in the blood.
• E) Some chemicals act as both neurotransmitters and hormones.

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