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प्रश्न
Select the most appropriate answer.
Bones with large air cavities are present in
a. cnidarians.
b. fish.
c. annelids.
d. birds.
विकल्प
cnidarians
fish
annelids
birds
उत्तर
birds
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संबंधित प्रश्न
Write the characteristics of class Aves with reference to their body covering and jaws.
Fill in the blank.
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amphibians and Pisces
Answer in detail.
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| Earthworm | Annelida |
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| Frog | Porifera |
| Spongilla | Aves |
Which group of animals have following characteristics: Body segmented, jointed appendages and compound eyes.
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