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4 votes
What type of skeleton for a

sponge
Cnidarians
Roundworms
Annelids
Mollusks
Arthropods
Echinoderms
Vertebrates
please help me!!

User Scottm
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5.1k points

2 Answers

5 votes
It’s Echinoderms. which has spongin fibers
User Margery
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4 votes
I believe it is Arthropods but I’m not 100% sure sorry if I’m wrong
User Dan Cornilescu
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