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What causes the movement of calcium and sodium ions in and out of cardiac cells?
Answers: 2
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Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism
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1. which of the following transport mechanisms utilizes energy? a. osmosis b. diffusion c. facilitated diffusion d. endocytosis
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What part of the body contains bile, an enzyme that break down lipids?
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What causes the movement of calcium and sodium ions in and out of cardiac cells?...
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