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Body having meshwork of cell, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum.

1. Porifera
2. Mollusca
3. Protozoa
4. Coelenterata

Correct answer: Porifera

Solution

Porifera have a porous body with a canal system lined by choanocytes (flagellated cells) that filter food from water. They also show indirect development, which fits the description given.

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