which class is the second largest class in kingdom Animalia...?
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Answer:
The second largest phylum of kingdom animalia is MOLLUSCA.
Explanation:
They are bilaterally symmetrical.
They are triploblastic, which three layers.
They show organ system grade of organisation.
The body is soft and unsegmented.
Body is divisible into three regions – head, a visceral mass, and ventral foot.
Body is covered by a mantle and shell.
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