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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

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

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Biology
At the time of inspiration the diaphragm

Relaxed
Does not under any change
Contract
Expand

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Biology
Rate of breathing in a minute by man is

20-25
70-72
16-18
15311

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Biology
The C shape of the tracheal cartilages is important because

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

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