New farming methods and tools led to ___ in the High Middle Ages. (A )a shortage of labor
(B) a war over trade
(C) acceptance of the barter system
(D) a population boom

Match the people with the descriptions.

Which factors slowed population growth in china until the 1300? a. one child policy. b. urbanization c. epidemics. d. warfare

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