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What type of skeleton for a sponge Cnidarians Roundworms Annelids Mollusks Arthropods Echinoderms Vertebrates please help me!!

What type of skeleton for a sponge Cnidarians Roundworms Annelids Mollusks Arthropods Echinoderms Vertebrates please help me!!
178k views
4 votes
What type of skeleton for a

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

User Scottm
by
8.0k points

2 Answers

5 votes
It’s Echinoderms. which has spongin fibers
User Margery
by
8.5k points
4 votes
I believe it is Arthropods but I’m not 100% sure sorry if I’m wrong
User Dan Cornilescu
by
8.7k points
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Representative organism Sponges Cnidarians Roundworms Annelids Mollusks Arthropods Echinoderms Vertebrates
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