The answer to this question would be: <span>B. Receptor site
The receptor site of a neurotransmitter often only receives a specific kind of transmitter. That was because the receptor has a unique 3D structure, so different transmitter wouldn't fit into the receptor. That was similar to lock and key principles.</span>
It is an embryo because a zygote is just a cell and it turns into a fetus after 8 weeks
Answer:
I would imagine it would be Psychological abuse
Explanation: