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Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..

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

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Plants need to regulate water in order to stay upright and structurally stable. Find out the different evolutionary adap..

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This tutorial investigates perception as two people can interpret the same thing differently. Know more about human perc..

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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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Population Regulation in an Ecosystem

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