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Naya [18.7K]
2 years ago
6

PLEASE HELP:

Biology
1 answer:
Lubov Fominskaja [6]2 years ago
8 0

Answer:

D.

Explanation:

as I read the statement I could easily imagine a small hollow bag like thing. for imaginig spongy shape I might need more details and taking in and releasing out makes imagine something a pump or similiar.

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