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Biology

Biology
Number of chromosomes in Down's syndrome is

49
48
47
46

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Biology
PH value of human blood is

9.2
8.1
7.4
8.4

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Biology
Malaria is more common in

Southern areas
Eastern areas
All over the word
Tropical areas

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Biology
________ is a thyroid hormone which controls the balance of calcium in the body.

All of these
Calcitonin
Thyroxine
Calmodulin

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Biology
Bacteria are (were) considered more as plants than animals because of the presence of

Cell wall
Spore formation
Small nucleus
Plasma membrane

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Biology
The numerous minute pores in the epidermis of a leaf are called

Stomata
Lenticels
Hydathodes
Perforation

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