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The bones of birds are long and hollow w...

The bones of birds are long and hollow with air cavities. These types of bones are called as:

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The correct Answer is:
Pneumatic bones
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ALLEN -ANIMAL KINGDOM-Exercise
  1. Which structure represents ear in amphibians and reptiles?

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  2. In which class of vertebrates 3-chambered heart is found?

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  3. The common chamber for alimentary canal, urinary, bladder and reproduc...

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  4. Which class of vertebrates possesses dry and cornified skin with epide...

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  5. In which reptiles 4-chambered heart is present?

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  6. Snakes and lizards shed off their scales often. This phenomenon is cal...

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  7. The presence of feathers is characteristic of which class?

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  8. The bones of birds are long and hollow with air cavities. These types ...

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  9. name of the additional chambers found in the digestive tract of birds:

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  10. name the respiratory organs in birds and mammals:

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  11. Presence of mammary gland is the unique character of which class?

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  12. Name an oviparous organism with presence of mammary glands:

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  13. Name the phyla which have radial symmetry:

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  14. A cavity in which mesoderm is found in scattered form is called as:

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  15. Match the column

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  16. Identify the following A,B,C and D in given figure:

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  17. Identify the following symmetries shown in the figures A and B:

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  18. Identify the following coelom shown in the diagrams A, B and C

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  19. Identify the following body forms shown in the figure:

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  20. The given structure is found in phylum (a) and helps in (b)

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