Question

which of the foll creatures has no blood but respires?
1.hydra
1.earthworm​

Answer 1

Answer:

1) Hydra

Explanation:

Hydra doesn't have blood. It is a single-cellular animal. In the hydra, respiration is accomplished via diffusion of molecules of oxygen and carbon dioxide through the skin whereas earthworm, cockroach and octopus has blood.

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Answer 2

Explanation:

Your answer is 1. hydra

➜ Hydra doesn't have blood. It is a single-cellular animal. In the hydra, respiration is accomplished via diffusion of molecules of oxygen and carbon dioxide through the skin whereas earthworm, cockroach and octopus has blood.