Red algae belongs to the taxonomic domain of Eukarya, members of which are characterised by having cells with nuclei. Eukarya covers all organisms in the Kingdom Protista, as well as the Kingdoms Plantae, Fungi and Animalia.
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Algae belong to the domain Eukarya. In nature, algae play multiple roles: they are primary producers, contributing to oxygen production through photosynthesis; they form the base of many aquatic food chains; they help regulate atmospheric carbon dioxide levels; and some species are used in biofuel production and as a source of various nutrients.
Some common types of algae found in Minnesota include blue-green algae (cyanobacteria), green algae, diatoms, and charophytes. These algae can be found in lakes, rivers, and wetlands throughout the state.
Domain Eukarya consists of the most kingdoms of the three domains.
The four main groups of algae are green algae, red algae, brown algae, and diatoms. They are diverse in their characteristics, habitats, and pigments.
phytoplankton zooplankton meroplankton holoplankton
Unicellular: Algae like Chlorella are single-celled organisms. Colonial: Algae such as Volvox form colonies of cells. Filamentous: Algae like Spirogyra form long chains of cells. Thalloid: Algae such as kelp have a plant-like body structure with differentiated tissues.