Microfilaments grow longer:
A. more quickly at one end than the other.
B. by growing outward from the centrosome.
C. in cycles, following rapid depolymerization.
D. if free tubulin dimers are available.
E. All of these choices are correct.
A
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42. The most common type of skin cancer is __________. Fill in the blank(s) with the appropriate word(s)
The fundamental unit of taxonomic classification is the ________.
Fill in the blank(s) with the appropriate word(s).
The process by which water is lost by evaporation from aerial plant parts is known as:
a. vaporization. b. photosynthesis. c. guttation. d. transpiration. e. abscission.
Vaccine prevention of acute respiratory infections (the common cold) is unlikely because
A) there is a relatively low social and economic cost associated with the common cold. B) colds are easily misdiagnosed as something else. C) antibiotics easily cure the common cold. D) there are many distinct virus strains and serovars that cause the common cold. E) humans do not generate a strong immune response to common cold viruses.