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  • Help me answer: Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum:

Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum:

  • Option 1)

    Porifera

  • Option 2)

    Mollusca

  • Option 3)

    Protozoa

  • Option 4)

    Coelenterata

 

Answers (3)

 

 

Phylum porifera -

Most primitive multicellular organism having pores in their body walls.(Known as ostia).They are mostly marine, few freshwater.The only phylum without nerves cells.

- wherein

 

Spongilla,Sycon,Euspongia.

 

 In Porifera (sponges), bodies are asymmetrical. Body lacks tissues or organs, but from a meshwork of cells surrounding channels that open to the outside through pores, and that expand into internal cavities lined with food filtering flagellated cells (choanocytes).


Option 1)

Porifera

Correct

Option 2)

Mollusca

Incorrect

Option 3)

Protozoa

Incorrect

Option 4)

Coelenterata

Incorrect

Posted by

Sabhrant Ambastha

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NEET 2024 Most scoring concepts

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Option 1 is correct.

Posted by

Halima ahmed

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Mollusca

Posted by

Sadqua Shamim

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