Preassembled nucleation sites in a living cell are equivalent to intracellular preference for actin.

a. true
b. false


Answer: a. true

Biology & Microbiology

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What cytoskeletal protein is phosphorylated by the M cyclin-CDK complex?

A. microfilaments B. microtubules C. intermediate filaments D. All of the above are correct.

Biology & Microbiology

The signal to "rest and digest" comes from the:

A. somatic system. B. parasympathetic system. C. peripheral system. D. sympathetic system.

Biology & Microbiology

In lakes and ponds, photosynthesis occurs primarily in the

A) benthic zone. B) profundal zone. C) limnetic zone. D) lotic zone.

Biology & Microbiology

Which factor has dramatically decreased infant mortality in human populations?

A) a shift from an agricultural to an industrial economy B) the use of pesticides to reduce mosquito populations C) the choice made by educated women to have fewer children D) an increase in poverty in developed countries

Biology & Microbiology