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In case of poriferans, the spongocoel is...

In case of poriferans, the spongocoel is lined with flagellated cells called

A

ostia

B

oscula

C

choanocytes

D

mesenchymal cells

Text Solution

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The correct Answer is:
C
The body wall of a common sponge consists of three layer, i.e. pinacoderm , choanoderm and mesophy II layer . Choanoderm is inner cellular layer which consists of highly specialised flagellated cells called choanocytes. The beating of their flagella creates water current.
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-ANIMAL KINGDOM-EXERCISE
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  2. An important characteristic that hemichordates share with chordates is

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  3. In case of poriferans, the spongocoel is lined with flagellated cells ...

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  4. Which of the following characteristic features always holds true for t...

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  5. Which of the following characteristics is not shared by birds and mamm...

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  6. Which of the following features is not present in the in the phylum ar...

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  7. Choose the correct statement.

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  8. Match column I with column II for housefly classification and select t...

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  9. Body having meshwork of cell, internal cavities lined with food filter...

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  10. Metagenesis referes to

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  11. A jawless fish which lays eggs in fresh water and whose ammocoete larv...

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  12. Which one of the following living organisms completely lacks a cell wa...

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  13. Planaria possesses high capacity of

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  14. A marine cartilaginous fish that can produce electric current is

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  15. Select the Taxon mentioned that represents both marine and fresh water...

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  16. match the name of the animal (colume I ) with one charcteristics (colu...

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  17. Which group of animals belong to the same phylum ?

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  18. One of the representative of Phylum arthropoda is

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