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Biology

Biology
Precentage of CO2 found in exhaled air

0.04
0.12
0.16
0.08

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Biology
Which type of bacteria get their food from dead organic matter?

Parasitic
None of these
Saprophytic
Autotrophic

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Biology
The oxygen released during photosynthesis process comes from

CO2
H2O
NO2
Glucose

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Biology
Which of the following bacterium causes crown gall disease in plants?

Bacillus thurigiensis
Agrobacterium tumefaciens
None of these
Pseudomonas fluorescens

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Biology
The unicellular algae used to supply and regulate the oxygen in space programmes is

Ulothrix
Odogonium
Chlorella
Spyrogyra

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Biology
Which among the following is/are female hormones?(i) Estrogen(ii) Progesterone(iii) Testosterone

(ii) and (iii)
(i) and (iii)
Only (iii)
(i) and (ii)

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