A group of marine, photosynthetic, eukaryotic plant structur ranging from unicellular to help multicellular sorts, and usually get chlorophyl but don't have genuine origins, arises and leaves sign of terrestrial crops.
Unicellular or even multicellular organisms in the past grouped seeing that crops, transpiring inwards refreshing or even salt water or dampish flat coat, that have chlorophyl along with hues but absence genuine comes, sources, and instead gives off. Plankton, which might be right now deemed protoctists, add some seaweeds, diatoms, as well as spirogyra.
Any of various chiefly aquatic, eukaryotic, photosynthetic organisms, ranging in size from single-celled forms to the giant kelp. Algae were once considered to be plants but are now classified separately because they lack true roots, stems, leaves, and embryos.
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Any of numerous groups of chlorophyll-containing, mainly aquatic eukaryotic organisms ranging from microscopic single-celled forms to multicellular forms 100 feet (30 meters) or more long, distinguished from plants by the absence of true roots, stems, and leaves and by a lack of nonreproductive cells in the reproductive structures: classified into the six phyla Euglenophyta, Crysophyta, Pyrrophyta, Chlorophyta, Phaeophyta, and Rhodophyta.
A plant or plantlike organism of any of several phyla, divisions, or classes of chiefly aquatic usually chlorophyll-containing nonvascular organisms of polyphyletic origin that usually include the green, yellow-green, brown, and red algae in the eukaryotes and especially formerly the cyanobacteria in the prokaryotes.