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Biology

Biology
In which of the following stages of silkworm, silk is secreted

Larva
Pupa
Egg
Adult

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Biology
Which of the following is true of osmosis?

It is a type of diffusion
Movement is against water's concentration gradient
All of these
Requires energy

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Biology
Rate of breathing in a minute by man is

15311
70-72
20-25
16-18

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Biology
Damage to hearing is caused by sounds which exceed

100 decibles
80 decibles
120 decibles
70 decibles

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Biology
What is the purpose of the mucus in your nose?

Protects nose
Protects lungs
Clear air passage
All of these

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Biology
Lathyrism is caused by excess consumption of________

Mustard oil
Mushrooms
Polished rice
Khesari Dal

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