alleryBioluminescence — the ability of a living organism to emit light — is well-marked in members of phylum
ACoelenterata
BAschelminthes
CPlatyhelminthes
DCtenophora
Answer & Solution
Correct answer: D. Ctenophora
1. Ctenophora, or comb jellies, are exclusively marine diploblastic animals.
2. They possess eight rows of ciliated comb plates that aid locomotion.
3. Bioluminescence is a diagnostic feature of ctenophores.
4. Cnidarians can bioluminesce but not to the degree characteristic of ctenophores.
_Source: syllabus Biology, Ch 4 "Animal Kingdom", §4.2.3_
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