Which type of parenting results in sexual activity and substance abuse in early developing

The percentage of variation in intelligence test scores is about

(a) 0% (b) 3% (c) 10% (d) 30% to 70% (e) not enough information is given to answer the question

It is virtually impossible to study sexual ___________ using conventional brain imaging technology

A) imagery B) intercourse C) motivation D) thinking E) arousal