Environmental Sciences, asked by rishiAmble453, 1 year ago

Sponges and hydra also have blood?

Answers

Answered by Anonymous
44
Sponges and hydra do not have blood, because they do not need, their body wall is very thin and they are surrended by water . The water in which they live brings food and oxygen as it enter their body the water carries away waste materials and carbon dioxide as it moves out.................
Answered by aishsonu63
10
Sponges and hydra do not contains blood....
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