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Adaptation, in biology and ecology, refers to the process or trait through which organisms or the populations in a habit..

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ATP is the energy source that is typically used by an organism in its daily activities. The name is based on its structu..

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Homeostasis of Organism Water Regulation

Osmoregulation is the regulation of water concentrations in the bloodstream, effectively controlling the amount of water..

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Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..

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The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..

Growth and Plant Hormones
Growth and Plant Hormones

Plants, like animals, produce hormones to regulate plant activities, including growth. They need these hormones to respo..