(a) Hormones

(b) Chemicals

(c) Cholesterol

(d) Carbohydrates

(a) Two

(b) Four

(c) Five

(d) Seven

(a) Steroids

(b) Corticoids

(c) Terpenoids

(d) Eicosanoids

(a) The messenger molecules are large

(b) The messenger molecules are short

(c) The messenger molecules are stable

(d) The messenger molecules are unstable

(a) Four

(b) Five

(c) Seven

(d) Eight

(a) Autocrine signaling

(b) Endocrine signaling

(c) Juxtacrine signaling

(d) All of the above

(a) Endocrine signaling

(b) Paracrine signaling

(c) Autocrine signaling

(d) Juxtacrine signaling

(a) Golf

(b) Gi family

(c) Gs family

(d) Gq family

(a) Insulin

(b) Gastrin

(c) Glucagon

(d) Testosterone

(a) Autocrine

(b) Endocrine

(c) Cyclic AMP

(d) None of the above