Biology, 11.01.2020 19:31 teacherpreacher
Why does a plant cell shrivel when placed in a solution of salt water? a. the water rushes out of the cell. b. the solutes rush out of the cell. c. the water rushes into the cell.
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Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine
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Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.
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Resperation is a way to release carbon back into the atmosphere
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