The approximate diameter of an actin filament is
a. 8-12 nm.
b. 7 nm.
c. 25 nm.
d. 5 mm.
Ans: b. 7 nm.
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Countries with the lowest GDP per capita have work forces engaged for the most part in
A) primary activities. B) secondary activities. C) tertiary activities. D) quaternary activities.
Which type of microscope provides the greatest depth of field?
a. light b. scanning electron c. transmission electron
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through a process known as: a. morphogenesis. b. determination. c. cell differentiation. d. nonspecific differentiation. e. growth.