How do all viruses differ from bacteria?
A) Viruses are filterable.
B) Viruses are obligate intracellular parasites.
C) Viruses do not have any nucleic acid.
D) Viruses are not composed of cells.
E) Viruses do not reproduce.
D
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___ refers to chronically high blood pressure -
above ___.
a. Hypertension...140/90 b. Hypertension...120/80 c. Atherosclerosis...140/90 d. Atherosclerosis...120/80 e. Hypertension...160/90
If you took a new, strong antibiotic, which vitamin would you most likely need that you didn't need before?
A) vitamin A B) vitamin K C) vitamin C D) vitamin E
A feature that only mammals have is:
a. predatory behavior. b. internal skeleton. c. bilateral symmetry. d. a skeleton of calcium carbonate. e. hair.
If you look at the apoplast and the symplast, which of the following statements are true?
(a) The apoplast is always smaller than the symplast. (b) The apoplast is the continuum of cytosol connected by plasmodesmata. (c) The symplast does not allow exchange of material with the apoplast. (d) Plasmodosmata connect the cytosol from neighboring cells to form the symplast, but they do not connect to the apoplast. (e) In the symplastic route, water and solutes move along the continuum of cell walls and extracellular spaces.