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Sponges of phylum Porifera possess a special type of cell. What is this cell called?
AGerm cell
BCnidoblast
CCollar cell
DEctodermal cell
Answer & Solution
Correct answer: C. Collar cell
1. Porifera have a characteristic feeding cell.
2. This is the collar cell.
3. Rule out cnidoblast: that is the stinging cell of Cnidaria.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 6 "Animal Classification", p.76_
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