Question

What is the gemmule formation

Answer 1

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Gemmule is an internal bud formed only

in sponges. It has asexually produced mass or

aggregation of dormant cells, the archaeocytes

capable of developing into a new organism.

The archaeocytes get coated by a thick resistant

layer of secretion by amoebocytes. The

gemmule is formed to overcome unfavourable

conditions. On return of favourable conditions

of water and temperature, the gemmules

hatch and develop into a new individual. e.g.

Spongilla

Answer 2

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Gemmule is a type of internal bud formed in sponges to pass the unfavourable season. It is helpful in asexual reproduction. It is an asexually reproduced mass of cells, that is capable of developing into a new organism i.e., an adult sponge.