ghosy8641 ghosy8641

04-06-2017
Biology

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In the human body, oxygen is absorbed by the lungs and nutrients are absorbed by the small intestine. In a single-celled organism, this absorption directly involves the 1. nucleus 2. chloroplasts 3. cell membrane 4. chromosomes

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Rukiyawo Rukiyawo

04-06-2017

3.) the cell membrane.

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morganX morganX

04-06-2017

It's a Cell membrane.

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