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Where are green algae commonly found?

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Green algae, members of the division Chlorophyta, are found in a variety of environments, though they occur most commonly in fresh water. In these aquatic settings, they are frequently observed attached to submerged rocks and wood or appearing as scum on stagnant water.12

Beyond freshwater habitats, green algae also exist in terrestrial and marine environments. Generally, algae are nearly ubiquitous and can be categorized by their specific ecological niches, such as living on soil, on the bark of trees, or even within rock fissures. Some species are also found growing on other organisms, including fungi and land plants.13