Ever since his mother began to give julio gold stars for keeping his bed dry all night, julio discontinued his habit of bed-wetting. his change in behavior best illustrates the value of a primary reinforcement. b classical conditioning. c spontaneous recovery. d operant conditioning. e latent learning.

Ope-rant conditioning

Explanation:

Ope-rant conditioning is the process in which an animal or human learns behavior through reward and punishment. In this process, the experimenter makes an association between the behavior and its consequences. Ope-rant conditioning plays a great role in daily life, in educational settings as well. Punishment and reinforcement could be taken in natural settings in daily routine.  

Thus in the above statement, Julio's mother used ope-rant conditioning to change her behavior of bed-wetting.

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.