Which of the following is NOT correctly matched with its phylum?
AAscaris — Aschelminthes
BTaenia — Platyhelminthes
CPleurobrachia — Ctenophora
DSycon — Annelida
Answer & Solution
Correct answer: D. Sycon — Annelida
1. Ascaris (roundworm) belongs to Aschelminthes — correct.
2. Taenia (tapeworm) belongs to Platyhelminthes — correct.
3. Pleurobrachia is a ctenophore — correct.
4. Sycon (Scypha) is a sponge (Porifera), not an annelid — this is the mismatch.
_Source: syllabus Biology, Ch 4 "Animal Kingdom", §4.2 several sections_
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