I believe it is called the stimulus. An example of a stimulus would be an explosion, and the a person's response would be scared or frightened.
Answer:
um what?
can u pls post ur question?
Explanation:
Which of the following are parts of the cardiovascular system?
a) Blood
b) Heart
d) Blood vessels
Choose: a); b); d)
Answer:
This phenomenon might increase sperm production in males
Explanation:
The most common androgen is testosterone, a hormone produced in the animal male gonads.
In the male gonads, testosterone binds to androgen receptors to activate transcription of genes involved in spermatogenesis