Which of the folllowing is incorrect for phylum Porifera?

Digestion is intracellular

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Sexes are separate

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Fertilisation is internal

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Development is indirect

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Solution

The correct option is B Sexes are separate
In phylum Porifera, sexes are not separate (hermaphrodite), i.e., eggs and sperms are produced by the same individual. Digestion is intracellular and fertilisation is internal. Development is indirect having a larval stage which is morphologically distinct from the adult.

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