The parts of a cell that perform many of its functions, such as construction of molecules and release of energy, are known as:

A. cell membranes
B. chromosomes
C. nuclei
D. organelles


D

Health & Biomechanics

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Indicate whether the statement is true or false.

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Feedback that is external and comes from an outside source is ________ feedback

A) negative B) positive C) corrective D) extrinsic

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Why would a resting ECG be normal when there actually is a heart problem?

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Research has found that meditators are less anxious than people who do not meditate

a. true b. false

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