Synaptic plasticity in response to psychoactive drugs can result in which of the following?
a. increase in the number of available neurotransmitters
b. decrease in the number of available neurotransmitters
c. increase in the number of receptors and receptor sites
d. the ability of the synapse to change in strength and function when the pathway is overused or underused

A,B,C and D

A. increase in the number of available neurotransmitters

B. decrease in the number of available neurotransmitters

C. increase in the number of receptors and receptor sites

D. the ability of the synapse to change in strength and function when the pathway is overused or underused

they float because they are less dense than the water itself

something denser than water, like a rock, will sink to the bottom

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.