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  • The tiny pores on the body wall of sponges are called  Option: 1 Osculum  Optio

The tiny pores on the body wall of sponges are called
 

Option: 1

Osculum
 


Option: 2

Ostia
 


Option: 3

Spongia
 


Option: 4

Canaliculi
 


Answers (1)

best_answer

 

 

Phylum Porifera and Morphological Features of Porifera -

  • Phylum Porifera contains the simplest invertebrate animals. 
  • They are commonly called as ‘sponges’.
  • They possess cellular level of organization. Different cells perform the essential functions of ingestion, digestion, excretion, reproduction etc.
  • They are sessile, that is, they remain fixed at a place. The larvae are capable of swimming.
  • They are filter-feeders.
  • Water current allows their nutrition, circulation and excretion.
  •  

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There are numerous pores in the body wall called the ostia (sing. ostium) through which water moves in the spongocoel.

Posted by

Ritika Kankaria

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