A lioness begins her nightly hunt after spending the day beneath a tree in the Serengeti. What happens to the blood vessels in her body as she goes from resting to hunting?
A. Arterioles supplying her stomach and
intestines contract.
B. Arterioles supplying her stomach and
intestines expand.
C. Arterioles supplying her limb muscles
contract.
D. Arterioles supplying her limb muscles
expand.
A,D
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Calcium is required for bacteria because it
A. stabilizes the cell wall. B. maintains cellular pH. C. stabilizes the nucleoid. D. stabilizes the ribosomes. E. makes strong cell walls.
Aspirin and other nonsteroidal anti-inflammatory drugs (NSAID) inhibit inflammation by inhibiting an enzyme in the prostaglandin pathway. However, inhibiting this enzyme also inhibits other pathways that protect the stomach from damage by stomach acid
and that form blood clots. What can you conclude from this? A) The enzyme inhibition is nonreversible. B) The enzyme is found in many different types of cells. C) Prostaglandins cause blood clotting. D) Aspirin should not be given to people who people who need to synthesize enzymes.
The greatest diversity of algae is found at:
a. tropical latitudes. b. polar latitudes. c. subtropical latitudes. d. temperate latitudes.
What are three proteins or groups of proteins you would expect to find bound to the core promoter region in eukaryotes?
What will be an ideal response?