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Many sponges may be bigger than fishes, yet they have no respiratory organs because they
A. Do not need respiratory organs
B. Are sedentary
C. Respire anaerobically
D. Have highly porous body

Pushpa Raj Joshi , 5 Years ago
Grade 12th pass
anser 2 Answers
Arun

Last Activity: 5 Years ago

 

Many sponges may be bigger than fishes, yet they have no respiratory organs because they
have highly porous body. Hence option d is correct.
 

Mahima Kanawat

Last Activity: 5 Years ago

Dear student 
Sponges have high porous body through which water enters and oxygen is exchanged through simple diffusion. 
WITH REGARDS 
MAHIMA 
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