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Which is not correct for sponges?
 

Option: 1

Internal fertilization
 


Option: 2

Gemmule formation
 


Option: 3

External fertilization
 


Option: 4

Gametes are formed from epidermal cells
 


Answers (1)

best_answer

 

Reproduction and Development in Porifera -

 

 

Sponges reproduce both asexually and sexually. The asexual reproduction occurs through the following:

  • Buds
  • Gemmules
  • fragmentation
  • Sponges are hermaphroditic. 
  • Ovum and sperm are formed within the same individual. 
  • Development involves free-swimming larval stage, hence the development is indirect.
  • Parenchymula larva is seen in Leucosolenia and Clathrina while Amphiblastula is seen in Sycon. 

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Fertilization occurs internally in the sponges.

Posted by

Suraj Bhandari

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