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This tutorial looks at the adaptations of freshwater plants for them to thrive in still water habitats. Familiarize your..

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

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This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..

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Neural Control Mechanisms

Neurons generate electric signals that they pass along to the other neurons or target tissues. In this tutorial, you wil..

Early Mammals on Earth
Early Mammals on Earth

The Earth's ecosphere was rapidly changing and throwing up a wide range of ecological niches that new adaptive organisms..

Darwin's Finches - Natural Selection
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This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..