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Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above
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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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Which of the following does not make up ground substance of connective tissue? hyaluronic acid elastic fibers glycosaminoglycan proteoglycan
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Blood vessels are muscular tubes that carry blood, sugar, and oxygen to the parts of the body. Nervo...
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