Which of the following plant secondary metabolites is used as an antimalarial drug?
A. manihotoxin
B. quinine
C. taxol
D. genistein
E. morphine
Answer: B
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Which of the following is an advantage of the
three-chambered heart over the two-chambered heart?
a. blood flow is faster when there are two circuits instead of one circuit b. blood pressure is independently controlled in each vascular circuit c. oxygen-rich and oxygen-poor blood do not mix d. capillary beds are possible with a threechambered heart but not a two-chambered heart e. more than one of these is an advantage of the three-chambered heart over the twochambered heart
Refer to Figure 31-6. The structures labeled 3 are involved in:
A. reproduction. B. respiration. C. excretion. D. sensory pathways. E. movement
A patient who requires repeated dosing with strong analgesics over a period of more than a few days might be prescribed which of the following secondary plant metabolites?
A. Morphine B. Taxol C. Genistein D. Cyanogenic glycosides E. Quinine
Which of the following options correctly lists the varieties of life in the order that they appear in the geologic record, from earliest to most recent?
A) reptiles, land arthropods, plants and fungi on land, flowering plants B) land arthropods, plants and fungi on land, flowering plants, reptiles C) plants and fungi on land, land arthropods, reptiles, flowering plants D) plants and fungi on land, land arthropods, flowering plants, reptiles