The second largest phylum in Animal Kingdom is ___.
A
Arthropoda
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B
Mollusca
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C
Annelida
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D
Cnidaria
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Solution
The correct option is B
Mollusca
Phylum Mollusca, comprised of snails, clams, oysters, squids etc., are the second largest phylum in the Animal Kingdom with respect to the number of species (around 150,000 species) described so far. This follows Phylum Arthropoda, which is the largest phylum in the Animal Kingdom.