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Biology

Biology
They protect plants from water loss and abrasive damage.

None of these
Minerals
Leaves
Waxes

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Biology
Number of chromosomes in Down's syndrome is

47
46
49
48

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Biology
Mitochondria are also known as

Factory of ribosomes synthesis
Store house of the cell
Power house of the cell
Factory of protein synthesis

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Biology
The number of pyrenoids in a cell of Spirogyra is

43895
Numerous
2
1

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Biology
Which one of the following weeds is effective in controlling water pollution caused by industrial effluents?

Mogar grass
Parthenium
Elephant grass
Water hycinth

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Biology
Study of typical behaviour of organisms in their natural habitatis is called

Euthenics
Ethnology
Ehology
Eugenics

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