The green algae (singular: green alga) are the large group of algae Algae are a large and diverse group of simple, typically autotrophic organisms, ranging from unicellular to multicellular forms. The largest and most complex marine forms are called seaweeds. They are photosynthetic, like plants, and "simple" because they lack the many distinct organs found in land plants from which the embryophytes The embryophytes are the most familiar group of plants. They are often called land plants because they live primarily in terrestrial habitats, in contrast with the related green algae that are primarily aquatic. The embryophytes include trees, flowers, ferns, mosses, and various other green land plants. All are complex multicellular eukaryotes (higher plants) emerged.[1] As such, they form a paraphyletic In phylogenetics, a group of organisms is said to be paraphyletic if the group contains its most recent common ancestor but does not contain all the descendants of that ancestor group, although the group including both green algae and embryophytes is monophyletic (and often just known as kingdom Plantae Plants are living organisms belonging to the kingdom Plantae. They include familiar organisms such as trees, herbs, bushes, grasses, vines, ferns, mosses, and green algae. The scientific study of plants, known as botany, has identified about 350,000 extant species of plants, defined as seed plants, bryophytes, ferns and fern allies. As of 2004,). The green algae include unicellular and colonial flagellates Flagellates are cells with one or more whip-like organelles called flagella. Some cells in animals may be flagellate, for instance the spermatozoa of most phyla. Higher plants and fungi do not produce flagellate cells, but the closely related green algae and chytrids do. Many protists take the form of single-celled flagellates, usually but not always with two flagella A flagellum is a tail-like projection that protrudes from the cell body of certain prokaryotic and eukaryotic cells, and functions in locomotion. There are some notable differences between prokaryotic and eukaryotic flagella, such as protein composition, structure, and mechanism of propulsion. An example of a flagellated bacterium is the ulcer- per cell, as well as various colonial, coccoid, and filamentous forms. In the Charales Charales is an order of pondweeds, freshwater algae in the division Charophyta. They are green plants believed to be the closest relatives of the green land plants. Linnaeus established the genus in 1753, the closest relatives of higher plants, full differentiation of tissues occurs. There are about 6,000 species of green algae.[2] Many species live most of their lives as single cells, while other species form colonies or long filaments.
A few other organisms rely on green algae to conduct photosynthesis for them. The chloroplasts in euglenids The euglenids are one of the best-known groups of flagellates, commonly found in freshwater especially when it is rich in organic materials, with a few marine and endosymbiotic members. Many euglenids have chloroplasts and produce energy through photosynthesis, but others feed by phagocytosis or strictly by diffusion. They belong to the phylum and chlorarachniophytes Chlorarachniophytes are a small group of algae occasionally found in tropical oceans. They are typically mixotrophic, ingesting bacteria and smaller protists as well as conducting photosynthesis. Normally they have the form of small amoebae, with branching cytoplasmic extensions that capture prey and connect the cells together, forming a net. They were acquired from ingested green algae,[1] and in the latter retain a vestigial nucleus (nucleomorph). Some species of green algae, particularly of genera Trebouxia In taxonomy, Trebouxia is a genus of algae, specifically of the Microthamniales and Pseudotrebouxia (Trebouxiophyceae), can be found in symbiotic associations with fungi A fungus is a member of a large group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. The Fungi (pronounced /ˈfʌndʒaɪ/ or /ˈfʌŋɡaɪ/) are classified as a kingdom that is separate from plants, animals and bacteria. One major difference is that fungal cells have cell to form lichens Lichens are composite organisms consisting of a symbiotic association of a fungus (the mycobiont) with a photosynthetic partner (the photobiont or phycobiont), usually either a green alga (commonly Trebouxia) or cyanobacterium (commonly Nostoc). The morphology, physiology and biochemistry of lichens are very different from those of the isolated. In general the fungal species that partner in lichens cannot live on their own, while the algal species is often found living in nature without the fungus.
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The North Bay Parry Sound District Health Unit reminds resident and visitors to the municipality of Callander that the blue- green algae bloom ...
Toxic algae trouble for tourism The North Bay Nugget
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