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Biology

Biology
Maximum fixation of solar energy is done by

Green plants
Bacteria
Fungi
Protozoa

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Biology
Which tissue makes the plant hard and stiff?

Collenchyma
Sclerenchyma
Xylem
Parenchyma

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Biology
Which of the following organisms fix nitrogen in aquatic ecosystems

Cyanobacteria
Chemoautotrophs
Fungi
Phytoplankton

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Biology
Organisms which synthesise their own food are called

Saprotrophs
Heterotrophs
Auxotrophs
Autotrophs

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Biology
Most of the red, blue and purple colours of plants are due to a pigment called

chlorophyll
carotene
xanthophylls
anthocyanin

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Biology
Which vitamin is also act as coenzymes

K
B12
E
None of these

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