Who attacked athens in 490 bc?
a. sparta
b. egypt
c. persia

The idea that desirable traits can be bred into human beings and undesirable ones can be bred out is known as:

Which type of antidepressant is matched with the correct neurotransmitter action? tricyclicsincrease activity of neurotransmitter gaba ssrisprevent neurotransmitter breakdown ssrisinhibit reuptake of serotonin mao inhibitorsincrease norepinephrine

Which term describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research and that is testable?