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Biology

Biology
A typical human ribcage consists of how many ribs ?

24
14
12
16

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Biology
The smallest unit that is capable of carrying out life functions is known as

DNA
Cell
Blood
Tissue

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Biology
Radioactivity is a phenomenon of the spontaneous emission of

protons (alpha particles)
electrons (beta particles)
gamma rays (short wave electromagnetic waves)
All of these

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Biology
The kilo calories of energy released from one gram of fats is

5.49
9.45
4.59
9.54

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Biology
The temperature danger zone for food is

Below 15 deg
Above 45 deg
None of these
5 - 63 deg

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Biology
Source of infection in diseases like Tuberculosis, Mumps and Whooping cough is

Direct contact
Droplets of saliva
A vector
Carrier organism

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