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The phyla showing presence of ostia is……...

The phyla showing presence of ostia is……………. .

A

protozoa

B

porifera

C

coelenterate

D

annelida

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CHETANA PUBLICATION-Kingdom Animalia -Exercise
  1. Enucleated RBCs are present in………. .

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  2. Mucus makes frog's skin…………. .

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  3. The phyla showing presence of ostia is……………. .

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  4. Asexual reproduction in poriferans is by…………. .

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  5. Animals showing blind sac body plan with single opening are included i...

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  6. Sedentary, tubular, cylindrical forms of coelenterate are called………… .

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  7. Which one of the following does not apply to coelenterata?

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  8. Which of the following has nerve cells but no nerves?

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  9. Excretion occurs with the help of glomerulus in………. .

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  10. Female ascaris is distinguishable from male ascaris by having………. .

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  11. …………………is a living fossil.

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  12. Metamerically segmented body is seen in………….. .

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  13. ……………….are the locomotory structure in Nereis.

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  14. Nephridia in earthworm is analogous to…………. .

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  15. Buccal cavity with a rasping organ called radula is characteristic fea...

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  16. Green glands are present in…………. .

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  17. ………………….is a sanguivorous arthropod.

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  18. Respiratory organs of a scorpion are…………. .

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  19. Highly evovled mouth parts for biting, sucking, chewing are seen in………...

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  20. Which of the following are economically not important arthropods?

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