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BIOLOGY

Biology
Function of heart in human body

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

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Biology
Function of hemoglobin is

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

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Biology
At the time of inspiration the diaphragm

Does not under any change
Contract
Expand
Relaxed

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Biology
Rate of breathing in a minute by man is

16-18
15311
20-25
70-72

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Biology
The C shape of the tracheal cartilages is important because

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

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