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Ascaris, the filarial worm and Loa loa are examples of which phylum?
AAschelminthes
BPlatyhelminthes
CAnnelida
DArthropoda
Answer & Solution
Correct answer: A. Aschelminthes
1. These are thread-like round worms, some living as endoparasites.
2. Round worms belong to phylum Aschelminthes.
3. Rule out Platyhelminthes: those are flat, leaf-like worms.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 6 "Animal Classification", p.77_
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