The __________ system is to boys as the _________ system is to girls

How can spontaneous recovery be overcome in order to extinguish a behavior?

a. One must use partial reinforcement in order to wean the subject away from the behavior gradually. b. One must respond to an extinction burst with the reward in order to minimize frustration. c. One must be persistent in not rewarding the behavior that is to be extinguished. d. One must refrain from rewarding any behaviors during the extinction process.

The development of secondary sexual characteristics is triggered by the release of hormones __________

A) from the gonads. B) from the thyroid. C) from the pineal gland. D) from the thymus gland.