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Which characteristic makes a cell membrane selectively permeable? the smooth outside of the membrane the chemical nature of the membrane the rigid nature of the membrane the thickness of the membrane
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Define adaptation. why do organisms adapt? give an example.
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Which statements about a food chain are true? choose all answers that are correct. a.plants are the first living organisms in food chains on land. b. the plants in a food chain are called herbivores. c. all food chains on land begin with energy from the sun. d. carnivores in a food chain eat only plants.
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Which characteristic makes a cell membrane selectively permeable? the smooth outside of the membran...
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