What is true about all sponges without exception?
(a) They are asymmetrical.
(b) They have a skeleton consisting of spicules and spongin fibres.
(c) They possess a cavity in body, behaving as gastrovascular cavity.
(d) They possess a water canal system operating in their body that ensures their feeding, excretion, reproduction, te
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Answered by
1
Answer:
I think it's b
Explanation:
hopes it helps
Answered by
0
Answer:
D and B are true for sponges
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