The granules of eosinophils contain ________.

A. antigens
B. peroxidase
C. serotonin
D. antibodies
E. histamine


Answer: B

Biology & Microbiology

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What will be an ideal response?

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The normal pH of rainfall is

A. slightly acidic, pH 5.6. B. slightly basic, pH 5.6. C. slightly acidic, pH 9.6. D. slightly basic, pH 9.6. E. neutral, pH 7.0.

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Differences in intensity of a stimulus

1.do not affect the impulse transmitted. 2.are indicated by the number of nerves activated. 3.control the part of the brain that receives the stimulus. 4.are encoded in the frequency of action potentials on a single axon. 5.are indicated by the number of nerves activated, and are encoded in the frequency of action potentials on a single axon.

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Magnetic resonance imaging (MRI) provides the best images of bone fractures, but due to expense, x-rays are used most often.

Answer the following statement(s) true (T) or false (F)

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