Rapid communication throughout the body is
accomplished by
a. neurons.
b. blood.
c. hormones.
d. muscles.
e. connective tissue.
Answer: a
Biology & Microbiology
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Which of the following plant cells has a companion cell?
a. tracheids b. vessel elements c. sieve elements d. sclereids e. fibers
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The process by which two interacting species act as agents of natural selection on one another is called
A) parasitism. B) mutualism. C) coevolution D) symbiosis. E) mimicry.
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For the complete respiration of one molecule of glucose, the citric acid cycle must turn a total of
What will be an ideal response?
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Hydrostatic pressure in plant cells that presses the plasma membrane firmly against the interior of the cell wall, making it rigid is.
What will be an ideal response?
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