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Air bladder is present in:

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Important Questions on Animal Kingdom

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Alpha Question Bank for Medical: Biology>Chapter 4 - Animal Kingdom>Exercise-5>Q 84
Which one of the following is a chordate but not a vertebrate?
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Alpha Question Bank for Medical: Biology>Chapter 4 - Animal Kingdom>Exercise-5>Q 85
Mammals giving rise to immature young ones and nursing them in a pouch are
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Alpha Question Bank for Medical: Biology>Chapter 4 - Animal Kingdom>Exercise-5>Q 86
The greatest evolutionary change that enabled the land vertebrates to be completely free from water, was because of the development of :
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Alpha Question Bank for Medical: Biology>Chapter 4 - Animal Kingdom>Exercise-5>Q 87
Animals which lack bone marrow are
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Alpha Question Bank for Medical: Biology>Chapter 4 - Animal Kingdom>Exercise-5>Q 88

In fishes, the blood circulation is represented as-

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The above blood flow indicate

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Alpha Question Bank for Medical: Biology>Chapter 4 - Animal Kingdom>Exercise-5>Q 90

Correct statement/s regarding open circulatory system is/are-