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Most living things get the oxygen they need from the air or water. true or false?
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For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a. control b. hypothesis c. procedure d. system
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Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems
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Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone
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Most living things get the oxygen they need from the air or water. true or false?...
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