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Biology

Biology
Blood leaving lung, is rich in

Carbondioxide
Number of RBC
Oxygen
Haemoglobin

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Biology
It is the basic structure found in all membranes such as those of mitochonchondria and chloroplasts.

Unit membrane
Cell wall
Nuclear membrane
Plasma membrane

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Biology
The longest cells of human body

Red blood cells
None of these
Neuron cell
White blood corpuuscles

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Biology
Goitre is due to the deficiency of

Iodine
Selenium
Calcium
Zinc

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Biology
Fossils of blue green algae were found in lime stones with the age almost as old as

3.3 Billion years
2.3 Billion years
4.3 Billion years
1.3 Billion years

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Biology
Antigen is a substance which

Lowers body temperature
Triggers the immune system
Destroys harmful bacteria
Is used as an antidote to poison

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MORE MCQ ON Biology

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