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This tutorial elaborates on the effect of light on plant growth. It describes how different plants require different amo..
Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..
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Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..
Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..