Question

explain transportation in cnidarians​

Answer 1

Answer:

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Explanation:

Cnidaria do not have a circulatory system simply because it is not needed; all cells are in contact with the water, which contains oxygen and nutrients. ... The cells undertake a process of diffusion to transport the oxygen, nutrients and waste in and out of the organism.

Answer 2

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Cnidaria do not have a circulatory system simply because it is not needed; all cells are in contact with the water, which contains oxygen and nutrients. The cells undertake a process of diffusion to transport the oxygen, nutrients and waste in and out of the organism.