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Plantlife can be studied at a variety of levels, from the molecular, genetic and biochemical level through organelles, c..

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Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..

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In this tutorial, find out more about certain types of inheritance that does not follow the Mendelian inheritance patter..

Physiological Homeostasis
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Homeostasis is essential to maintain conditions within the tolerable limits. Otherwise, the body will fail to function p..

Human Reproduction
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Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..

Origins of Life on Earth
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Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..