Question

define the term stimuls and impulse​

Answer 1

Answer:

(a) Stimulus: Any change in the environment that usually results in change in the activity of the body.

(b)Impulse: A wave of electrical disturbance that runs through the nerves. ... Sensory nerve: It contains only sensory neurons. Example: optic nerve of the eye.

Explanation:

Hope it helps

Answer 2

Answer:

Stimulus is an external agent that causes response in the organism

impulse is are signals which travel along the nerve fibres and release neurotransmitters