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The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..

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The blood sugar level is regulated by two hormones. The mechanism behind this type of negative feedback control is descr..

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Muscle cells are specialized to generate force and movement. Learn about the different types of muscle tissues in this t..

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Still Freshwater & Plants

Plants in lentic habitats have features not found in terrestrial plants. They acquired these features as they adapt to t..

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 ..

Evolution of Life - Ancient Earth
Evolution of Life – Ancient Earth

Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..