Higher organisms use a transport system and not diffusion only to distribute nutrients because
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- A The ratio of their surface area to volume is small
- B Metabolic waste products diffuse to the surface of the organisms
- C The rate at which nutrients and other substances diffuse increases
- D Substances to be transported move shorter distances to reach the numerous cells
- E The internal structures of the organisms are in direct contact with the environment.
Correct Answer: Option A
Explanation:
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