Question

how does the substance get In hydra​

Answer 1

Answer:

In simple multicellular organisms like Hydra, the transportation of material from cell to cell takes place through simple diffusion. Sponges have water transport system or canal system that helps in transportation of materials.

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Answer 2

Answer:

Hydra, the transportation of material from cell to cell takes place through simple diffusion. Sponges have water transport system or canal system that helps in transportation of materials.The water enters the body cavity through tiny pores on body called ostia and goes out from the pores called osculum.

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