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Biology Practice Questions Set 13
For India's Top Government Exams
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Development of goitre (enlarged thyroid gland) is mainly due to deficiency of
*
1 point
Sodium
Iodine
Calcium
Iron
Which one among the following will be absorbed fastest through the wall of the digestive system?
*
1 point
Black coffee as a hot beverage
DDT taken as a poison
Raw alcohol taken as a drink
Ice cream as a dessert
Endosulfan, which has been in news these days, is ___
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1 point
a pesticide
a fertilizer
a sulpha drug
an antibiotic
The ultimate cause of water movement in a plant stem against gravity is
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1 point
osmosis
transpiration
photosynthesis
diffusion
If we sprinkle common salt on an Earthworm, it dies due to
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1 point
osmotic shock
respiratory failure
toxic effect of salt
closure of pores of the skin
The anti-malarial drug quinine is made from a plant. The plant is ___
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1 point
neem
eucalyptus
cinnamon
cinchona
It has been observed that astronauts lose a substantial quantity of calcium through urine during space flight. This is due to
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1 point
hypergravity
microgravity
intake of dehydrated food tablet
low-temperature IP cosmos
To suspect HIV
/
AIDS in a young individual, which one among the following symptoms are mostly associated with?
*
1 point
Long-standing jaundice and chronic liver disease
Severe anemia
Chronic diarrhea
Severe persistent headache
Polar bears are carnivores and prey on many arctic birds and fishes. However, under natural conditions, no one found polar bears predating any penguins. This is because
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1 point
penguins have chemical substances in their muscles which is toxic to polar bears
penguins are gregarious and always move in groups. Therefore, a polar bear cannot approach them
polar bears and penguins never coexist under natural conditions. The former lives in the North Pole while the latter lives in the South Pole
polar bears and penguins display symbiotic relationships and they help each other in their existence in the ice-cold ecosystem
Cutting and peeling onions brings tears to the eyes because of the presence of ___
*
1 point
sulfur in the cell
carbon in the cell
fat in the cell
the amino acid in the cell
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