Question

______ donot have any circulatory system. *
Sponges
Fish
Human
Bird

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Answer 1

Answer:

Sponges

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Answer 2

Answer:

Sponges

Explanation:

sponges donot have any circulatory system.

Sponges do not have nervous, digestive or circulatory systems. Instead, most rely on maintaining a constant water flow through their bodies to obtain food and oxygen and to remove wastes.