Gemmule formation in sponges is helpful in

Parthenogenesis

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Sexual reproduction

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Only dissemination

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Asexual reproduction

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Solution

The correct option is C Asexual reproduction
Sponges belongs to phylum Porifera. It reproduces by asexual mode of reproduction. Gemmules are bud like structure which mainly forms a new sponge. It is similar to the resistant spores of the bacteria. They are made up of amoebocytes surrounded by a layer of spicules
So, the correct answer is 'Asexual reproduction'

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Gemmules produced by sponges during unfavorable conditions help in:

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