The part of the brain that deals with the basic drives such as hunger, sex, and thirst is the:
a. cerebrum
b. pons
c. cerebellum
d. thalamus
e. hypothalamus
e
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A flower with petals, sepals, stamens, and one carpel is
a. perfect and incomplete. b. imperfect and complete. c. imperfect and incomplete. d. perfect and complete. e. sterile
Which of the following molecules does not act as a second messenger?
a. protein kinase b. IP3 c. DAG d. calcium ions e. cyclic AMP
The phenomenon whereby a small number of species diversify into a much larger number of species, able to live in a wide diversity of habitats is known as:
a) mass extinction. b) microevolution. c) adaptive radiation. d) colonization. e) background extinction.
Which of the following is a gastric enzyme that breaks down proteins into peptides?
A) Pepsin B) Sodium bicarbonate C) Bile D) Lipase E) Amylase