Instrumental behavior can be reinforced in which two general ways?
a. positive reinforcement and negative reinforcement
b. reward and punishment
c. compulsion and reward
d. motivation and pain

Rachel ate a piece of fruit and happened to drop the seeds in her backyard. after a few weeks, she saw a small plant with flowers growing in the backyard. which group does this plant belong to? a. angiosperms b. gymnosperms c. pteridophytes d. bryophytes e. chytrids