A muscle contraction always involves a decrease in the length of the muscle fiber

A. true
B. false


B

Biology & Microbiology

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The most severe and fatal form of anthrax is

A) cutaneous anthrax. B) inhalation anthrax. C) intestinal anthrax. D) zoonotic anthrax.

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Draw a shell model of an uncharged nitrogen atom (nitrogen has 7 protons)

What will be an ideal response?

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Describe the differences in function of the five immunoglobulin classes. What will be an ideal response?

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Jan van Helmont concluded that plants gain most of their mass from

a) water. b) the soil. c) carbon dioxide in the air. d) oxygen in the air.

Biology & Microbiology