Higher organisms use a transport system and not diffusion only to distribute nutrients because
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.
Explanation
Correct Option
aNo explanation available
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