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Biology

Biology
The size of the pupil is controlled by the

Retina
Iris
Lens
Cornea

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Biology
The number of chlorplasts in a cell of Spirogyra is

43844
43834
43838
43869

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Biology
With reference to the work of human kidney consider the following statements1. After the waste is removed in the kidney the clean blood is sent back through renal artery.2. From Bowman's capsule, the filtered liquid passes through tiny tubes where much of the glucose is reabsorbed and sent back to the blood in the renal vein.Which of these statements is/are correct?

Only 2
Neither 1 nor 2
Only 1
Both 1 and 2

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Biology
The animals in which the body cavity is absent are known as ________ .

Wild
Coelomates
Acoelomates
Pseudocoelomates

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Biology
They are present in the underground parts of the plants and stored food

Chromoplasts
Leucoplasts
Lysosomes
Chloroplasts

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Biology
Which of the following vitamins acts like hormone?

Vitamin A
Vitamin D
Vitamin B
Vitamin C

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