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Biology

Biology
If CO2 concentration in the blood increases, the breathing will

Stop
Decrease
No effect
Increase

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Biology
The pair of spinal nerves in main are

31
32
33
30

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Biology
Lathyrism is caused by excess consumption of________

Mustard oil
Mushrooms
Khesari Dal
Polished rice

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Biology
In female a small portion oviduct is removed and cut end is ligated by surgical operation is called

Neurotomy
Vascotomy
Psycotomy
Tubecotomy

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Biology
Which of the following is not a digestive enzyme in the human system?

Trypsin
Pepsin
Gastrin
Ptyalin

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Biology
In man there are how pairs of homologous chromosomes?

16
11
23
46

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