Which of the following is not a function of cerebrospinal fluid?

a. cushioning the brain
b. cushioning the spinal cord
c. providing the brain with nutrients
d. removing wastes from the brain
e. transmitting impulses


E

Biology & Microbiology

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During resting exhalation in humans, the diaphragm ____ and the internal intercostal muscles ____

a. contracts; relax b. relaxes; contract c. contracts; contract d. relaxes then contracts; contract then relax e. relaxes; relax

Biology & Microbiology

Which of the following is NOT dependent on

the others as a food supply?

a. carnivores b. herbivores c. producers d. detritivores e. decomposers

Biology & Microbiology

Striated means

a. multinucleated. b. fibrous. c. voluntary. d. striped. e. bundled.

Biology & Microbiology

Which of the following is most likely to decrease genetic variation?

A) directional selection B) mutation C) stabilizing selection D) diversifying selection

Biology & Microbiology