Discussion Forum : Animal Kingdom
Question - Choose the correct option.
Options:
A .  Aves and Chordata — Classes
B .  Annelida and Porifera — Phyla
C .  Mollusca and Hydrozoa — Classes
D .  Oligochaeta and Arthropoda — Phyla
Answer: Option B
:
B
Annelida and Porifera are phyla under the kingdom Animalia. Among the other options, Aves is a class under phylum Chordata, Hydrozoa is a class under phylum Cnidaria and Oligochaeta is a class under phylum Annelida. Arthropoda and Mollusca are phyla under the kingdom Animalia.
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