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With regard to the population size of a species and what factors may affect them, two factors have been defined. They ar..

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This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..

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Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..

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The human body is capable of regulating growth and energy balance through various feedback mechanisms. Get to know the e..

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Organisms employ different strategies to boost its defenses against antigens. Humans have an immune system to combat pat..

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