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This tutorial elaborates on the effect of light on plant growth. It describes how different plants require different amo..
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The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..
This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..
Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..