TEXTBOOK EXERCISES
1. Choose the correct answer.
1. Find the group having only marine
members.
(a) Mollusca (b) Coelenterata
(c) Echinodermata (d) Porifera
Mesoglea is present in
(a) Porifera
(b) Coelenterata
Answers
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2
Answer:
mollusca and porifera
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