Figure 7 shows two cubes. Cube X represents a bacterial cell. Cube Y represents a small multicellular organism. A bacterial cell can absorb all the nutrients it needs by diffusion through its outer surface. Explain why a multicellular organism cannot absorb all the nutrients it needs by diffusion through its outer surface. You must include calculations in your answer. Use Figure 7.
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Figure 7 shows two cubes. Cube X represents a bacterial cell. Cube Y represents a small multicellula...
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