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Which one of the following is not a char...

Which one of the following is not a characteristics feature of sponge ?

A

Cellular level of organisation

B

Presence of ostia

C

Intracellular digestion

D

Body supported by chitin

Text Solution

Verified by Experts

The correct Answer is:
D
The sponges possess an endoskeleton in the form of calcareous spicules, siliceous spicules and spongin fibres, But not by chitin.
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ARIHANT NEET-ANIMALIA -I (LOWER INVERTEBRATES)-CHAPTER EXERCISES (Taking it together) medical entrances gallery (Collection of Questions Asked in NEET & in various Entrance Exams))
  1. Which of the following has biradial symmetry ?

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  2. Coelom is found between the cavity of

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  3. Which one of the following is not a characteristics feature of sponge ...

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  4. The anterior V-spot in microfilaria of Wuchereria represents

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  5. One example of animals having a single opening to the outside that ser...

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  6. Which one of the following animals posesses high regeneation capacity?

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  7. The pseudocoelomate among these is

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  8. Bilaterally symmetrical deuterostome belongs to

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  9. Which one of the following groups of animals is bilaterally symmetrica...

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  10. Cold - blooded animals fall under the category of

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  11. Deuterostome condition and indeterminate radial cleavage are character...

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  12. Body cavity of adult Ascaris is

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  13. The causative agent of filaria is

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  14. Bioluminescence is well marked in

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  15. Which shows polymorphism

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  16. Ascaris is characterized by

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  17. Portuguese Man of War is

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  18. The cross-section of the body of an invertebrate is given below. Ident...

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  19. Turbellarians are free living

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  20. An acoelomate animal with bilateral symmetry is

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