Q. Kala-azar is transmitted by -
1) Sand fly
2) Mites
3) Black flies
4) Tsetse fly
Q. ________________ is generally called as milk sugar as it is found in milk.
1) Lactose
2) Glucoce
3) Fructose
4) Maltose
Q. Which blood vessels carry pure blood from the lungs to the heart?
1) Pulmonary veins
2) Cardiac artery
3) Cardiac vein
4) Pulmonary arteries
Q. Hyphae are -
1) produced by yeast
2) thin threads formed by many fungi
3) reproductive cells
4) responsible for preventing the cell from losing water in wet conditions
Q. Yeast, which is used to make bread, belongs to the group -
1) Protista
2) Fungi
3) Monera
4) Protozoa
Q. Mutation in a virus is caused due to a change in its -
1) cell size
2) genetic material
3) shape
4) colour
Q. Which one of the following living organisms gives litmus?
1) Protozoa
2) Virus
3) Lichen
4) Saccharomyces
Q. Which of the following mineral acids is found in the human stomach?
1) Hydrochloric acid
2) Lactic acid
3) Uric acid
4) Methanoic acid
Q. The disease rickets develops in children due to the deficiency of -
1) Vitamin C
2) Vitamin D
3) Vitamin A
4) Vitamin B
Q. Plants prepare glucose in the process of -
1) respiration
2) photosynthesis
3) degradation
4) mineral absorption
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