Which one of the following forms the blk of exoskeleton of an arthropod?

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Which character differentiates living things from non-living organisms?

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On average there are _______ or more thylakoid per granum?

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Each ach nephridium of earthworm opens to the exterior by__________?

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Mammalian kidney, under restricted water supply can conserve water by over ________ % reabsorption of glomerular filtrate

A. 80.50% B. 90.50% C. 95.50% D. 99.50%...

Who introduced Homeopathy in 1796?

A: Samuel Hahnemann B: Franz Anton Mesmer C: Edward Jenner D: Hakim Ajmal Khan...