Question 1
A drug like nicotine that produces a biological response in the brain is called a(n) __________.
◦ antagonist
◦ agonist
◦ benzodiazepine
◦ GABA
Question 2
Chemical substances in the body that regulate bodily activities such as growth, metabolism, and sexual reproduction are called __________.
◦ pituitary proteins
◦ enzymes
◦ neurotransmitters
◦ hormones