The axons of a motor neuron release a neurotransmitter which generates an impulse to contract a muscle. what is this neurotransmitter called?

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

What element is able to combine with itself and hydrogen to form large molecules ?

What substance acts to prevent sudden ph changes in bodily fluids?