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Biology

Biology
O2 released in the process of photosynthesis comes from

pyruvic acid
CO2
sugar
water

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Biology
Function of heart in human body

Work like pumping machines
None of these
To increase temperature
To release energy

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Biology
Which one of the following is not a genetic disorder ?

Xerophthalmia
Colour blindness
Haemophilia
Down's syndrome

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Biology
Which of the following is an example of parasitism?

Ticks that live on dogs
Leeches consume blood of their host
All of these
Aphid insects eat the sap of the host plant

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Biology
Which of the following does not have blood but undergoes respiration ?

Cockroach
Hydra
Snail
Kangaroo

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Biology
Longest bone found in which part of human body?

Rib cage
Arm
Thigh
Vertebral column

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