glands secrete __________ in reflex actions. what is the missing word?
The missing word is: chemical.
In reflex actions, glands act as effectors and secrete a chemical substance (for example, a hormone or enzyme) in response to a nerve impulse.
The missing word is: chemical.
In reflex actions, glands act as effectors and secrete a chemical substance (for example, a hormone or enzyme) in response to a nerve impulse.