When an individual perceives an event (stressor) as stressful, the controls the activation of the endocrine system and the (autonomic) nervous system?

Hypothalamus is the answer 

Hypothalamus
is the correct answer

it is an endocrine gland which secretes hotmones when person is in stress...

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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.

Aneutral atom must have the same number of neutrons and protons? no, they must have the same number of protons and electrons