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Biology

Biology
The rate of heartbeat is accelerated by the hormone

Acetylcholine
Thyroxine
Pituitrin
Adrenaline

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Biology
Malaria is more common in

All over the word
Southern areas
Tropical areas
Eastern areas

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Biology
Aestivation is seen in

Squirrels
Salmon
Chimpanzee
Amphibians

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Biology
The kilo calories of energy released from one gram of fats is

5.49
9.45
9.54
4.59

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Biology
In plants, exchange of gases takes place through

Spongy tissue
Mid rib
Stomata
Palisade tissue

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Biology
Which one of the following processes takes place in lakes during eutrophication?

Rapid destruction of algal growth
Loss of dissolved nutrients from water
Excessive entry of nutrient into water
Excessive availability of dissolved oxygen

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