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Biology

Biology
In which year, Schwann and Schleiden suggested that cells were the basic unit of life

1832
1839
1852
1849

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Biology
Rickets is caused due to the deficiency of

Carotene
Calciferol
Thiamine
Cyanocobalamine

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Biology
Which of the following is true of annelids?

They perform gas exchange across their skin
They have an open circulatory system
They have pseudocoeloms
They have a nerve net

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Biology
The energy in most ecosystems comes from

Water
Carbon dioxide
Soil
Sun

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Biology
There is no bacteria activity in which of the following process?

Sewage disposal
Preparation of sillage
Tanning of leather
Ripening of cheese

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Biology
Which among the following is not a connective tissue?

Blood
Cartilage
Skin
Bone

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