What is another term for the responding variable?
primary variable
dependent variable
independent variable
uncontrolled variable

The responding variable is the variable which is impacted by change of the independent variable. For example, when a solution is added with base, the pH of the solution turns basic. Hence the responding variable is the pH. responding variable is synonymous to dependent variable

Neurotransmitters are messengers responsible for communication between neurons. they are released from synaptic vesicles and are received by receptors.  the communication is referred to as neurotransmission. the following statement is true about neurotransmitters: a. they're stored in synaptic vesicles in the axon.