which of the foll creatures has no blood but respires?
1.hydra
1.earthworm
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2
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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Answered by
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.
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