A) Prawn has two pairs of antennae
B) Millipedes have two pairs of appendages in each segment of the body
C) Animals belonging to phylum Porifera are exclusively marine
D) Nematocysts are characteristic of the phylum cnidaria.
Correct Answer: C
Solution :Animals belonging to phylum Porifera are mostly marine except a few which are found in fresh water, e.g., Spongilla, Enspongia.
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