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Biology

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

Hydathodes
Perforation
Stomata
Lenticels

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Biology
The rate of heartbeat is accelerated by the hormone

Thyroxine
Acetylcholine
Pituitrin
Adrenaline

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Biology
One of the following is most suitable for study of mutations

Tetraploids
Haploids
Polyploid
Diploids

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Biology
How many bones are there in the human cranium?

10
6
12
8

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Biology
Rh factor is discovered by

Landsteiner and Weiner
Landsteiner
Weiner
Leuen hook

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Biology
Biological complete proteins are found in

Potato, Onion, Carrot
Meat, Milk, Egg
Apple, Egg, Wheat
Rice, Meat, Butter

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