Which system controls how the body responds to internal and external stimuli through voluntary and involuntary actions

Is karma the same as destiny, in the sense that everything that happens to you is predetermined? do you believe that "what goes around comes around," and if so is this the same as karma? does everyone get what they deserve, in the end?

Overpopulation puts severe stress on the environment because .

Ahistorian claims massive drought and famine in china caused the boxer rebellion. which of the following historians is making a counterclaim?