12 Facts About Algae


Algae is an informal term for a large and diverse group of photosynthetic eukaryotic organisms.

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Algae constitute a polyphyletic group since they do not include a common ancestor, and although their plastids seem to have a single origin, from cyanobacteria, they were acquired in different ways.

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Algae have photosynthetic machinery ultimately derived from cyanobacteria that produce oxygen as a by-product of photosynthesis, unlike other photosynthetic bacteria such as purple and green sulfur bacteria.

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Algae contain chloroplasts that are similar in structure to cyanobacteria.

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Algae spread mainly by the dispersal of spores analogously to the dispersal of Plantae by seeds and spores.

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Algae are prominent in bodies of water, common in terrestrial environments, and are found in unusual environments, such as on snow and ice.

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Algae can be used as indicator organisms to monitor pollution in various aquatic systems.

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The third island in Kunming Lake beside the Summer Palace in Beijing is known as the Zaojian Tang Dao, which thus simultaneously means "Island of the Algae-Viewing Hall" and "Island of the Hall for Reflecting on Literary Talent".

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Algae are national foods of many nations: China consumes more than 70 species, including fat choy, a cyanobacterium considered a vegetable; Japan, over 20 species such as nori and aonori; Ireland, dulse; Chile, cochayuyo.

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Algae is being considered a potential solution for world hunger problem.

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Algae have emerged in recent years as a popular source of omega-3 fatty acids for vegetarians who cannot get long-chain EPA and DHA from other vegetarian sources such as flaxseed oil, which only contains the short-chain alpha-linolenic acid .

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Algae scrubbers, using bubbling upflow or vertical waterfall versions, are now being used to filter aquaria and ponds.

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