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This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..

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

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Lotic Communities & Animals

A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic..

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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..

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This tutorial looks at some of the communities in freshwater lentic habitats. For instance, symbiosis occurs in a commun..