CBSE Class 9 Answered
movement of substances in the cell
Asked by ginny_pretty | 28 Mar, 2009, 01:46: PM
Expert Answer
Substances like oxygen, CO2 & water move in & out of the cell through diffusion. They move from a region of higher concentration to a region of lower concentration.
Answered by | 30 Mar, 2009, 07:00: PM
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