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Blood and Blood Circulation


25. 

Consider the following statements:
Assertion(A): O group blood cells contain neither antibody A nor B
Reason(R): A person possessing the O Rh- group is known as a universal donor.
Of these statements:

Answer : D. A is false,but R is true

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26. 

which one of the following is important for blood clotting?

Answer : D. Thrombocyte

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27. 

Which of the following organisms has no blood put respires?

Answer : C. Hydra

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28. 

Mammals are

Answer : C. both warm and cold blooded

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29. 

For coagulation of blood,which vitamin is needed?

Answer : D. K

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30. 

A man with blood group O can be given blood to

Answer : D. All

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