Nature is to ________ as nurture is to ________

The major physiological dangers of marijuana are ______

a. potential respiratory and cardiovascular damage b. physical and psychological dependence c. low fertility and higher rates of miscarriage in women d. lowered immunological functioning and increased susceptibility to infections

Difficulties in which type of learning will signal the development of problems such as mental retardation?

a) Modeling b) Habituation c) Operant conditioning d) Classical conditioning