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Which one of the following groups of ani...

Which one of the following groups of animals reproduces only by sexual means?

A

Porifera

B

Protozoa

C

Ctenophora

D

Cnidaria.

Text Solution

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The correct Answer is:
B
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DINESH PUBLICATION ENGLISH-COELENTERATA AND CTENOPHORA (OR CNIDARIA AND ACNIDARIA)-RQ
  1. A radially symmetrical free swimming biolu- minescent diploblastic m...

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  2. Match the following and choose the correct option {:("(i) Physalia...

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  3. Which is a coelenterate

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  4. Craspedote (with velum) medusa is present in the pair (a) Aurelia and ...

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  5. Which one of the following groups of animals reproduces only by sexual...

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  6. Presence of comb plates is characteristic feature of

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  7. Stinging cells occur in

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  8. Find out the odd one (a) Adamsia (b) Astraea (c) Physalia (d) Pl...

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  9. Which of the statements regarding coelenterates is/are wrong I. Cnid...

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

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  11. Which of the following exhibits metagenesis (a) Hydra (b) Adamsia ...

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  12. Indentify the phylum X "Animalia"rarr"Tissue Grade"rarr"Bilateral"ra...

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  13. Which is not a cnidarian (a) Obelia (b) Jelly Fish (c) Sea Anemon...

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  14. Metagenesis refers to (a) Presence of different morphile forms (b) ...

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  15. Portuguese Man of war is

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  16. What will happen if Hydra is cut transversely into two halves (a) Buil...

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  17. 'Lasso'' is a structure found in (a) Nutritive muscular cell (b) Epi...

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  18. In metagenesis of cnidarian like Obelia, the polyps and medusae are re...

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  19. This belongs to phylum cnidaria

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  20. Assertion : In Pleuraobrachia, eight comb like ciliary plates called c...

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