Most of our nitrogen-containing waste products are a result of __________.
a. drug use
b. consumption of foods high in nitrates, such as green vegetables
c. protein metabolism
d. the body's attempts to maintain pH homeostasis
e. metabolism of fatty foods
Ans: c. protein metabolism
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Which two subatomic particles are almost always equal in number?
a. electrons and neutrons b. protons and neutrons c. protons and electrons d. photons and electrons e. neutrons and neutrinos
During the spring calving season, a ranch hand begins to run a fever and feel nauseous and achy. After he develops a headache and vomiting, he goes to a clinic. A microscopic exam of a urine sample reveals long thin microbes which move very rapidly in a
corkscrewing pattern. The man may have contracted A) lymphogranuloma venereum. B) glomerulonephritis. C) leptospirosis. D) staphylococcal toxic shock syndrome. E) trichomoniasis.
Describe the mechanisms by which certain prokaryotes glide. What are the ecological advantages of gliding motility?
What will be an ideal response?
Meiosis in a diploid organism typically results
in the production of
a. two diploid cells. b. four diploid cells. c. four haploid cells. d. two haploid cells. e. one triploid cell.