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BIOLOGY

Biology
Function of heart in human body

To increase temperature
None of these
Work like pumping machines
To release energy

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Biology
Function of hemoglobin is

None of these
To check the loss of blood
Destruction of bacteria
To transport oxygen

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Biology
At the time of inspiration the diaphragm

Expand
Does not under any change
Relaxed
Contract

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Biology
Rate of breathing in a minute by man is

20-25
70-72
15311
16-18

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Biology
The C shape of the tracheal cartilages is important because

Provide a surface for the sense of smell
Allows for expansion or contraction of the trachea
All of these
Divide the nasal cavity

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