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To use this stored chemical energy, an organism's cells metabolize the organic compounds through cellular respiration. Photosynthesis plays a critical role in producing and maintaining the oxygen content of the Earth's atmosphere, and it supplies most of the biological energy necessary for complex life on Earth.
Viola is a genus of flowering plants in the violet family Violaceae. It is the largest genus in the family, containing over 680 species. Most species are found in the temperate Northern Hemisphere; however, some are also found in widely divergent areas such as Hawaii, Australasia, and the Andes. Some Viola species are perennial plants, some are ...
Viola selkirkii is a species of violet known by the common names Selkirk's violet and great-spur violet. It is native throughout the Northern Hemisphere, its distribution circumboreal. [1] [2] [3] This species is a rhizomatous perennial herb with hairy, heart-shaped leaves. The flowers are up to 1.5 centimeters wide and are violet in color.
Violaceae is a family of flowering plants established in 1802, consisting of about 1000 species in about 25 genera. It takes its name from the genus Viola, the violets and pansies . Older classifications such as the Cronquist system placed the Violaceae in an order named after it, the Violales or the Parietales.
Viola adunca. Sm. Synonyms. Viola bellidifolia. Viola cascadensis. Viola adunca is a species of violet known by the common names hookedspur violet, early blue violet, sand violet, and western dog violet. It is native to meadows and forests of western North America, Canada, and the northern contiguous United States.
Viola sororia is a short-stemmed, herbaceous perennial plant that grows in well-drained and shady habitats. [5] This 15–25 centimeters (6–10 in) wide violet has glossy, heart-shaped leaves and are topped with purple flowers with white throats. The lower three petals are hairy and the stem of the flower droops slightly. [7]
Salt is a mineral composed of sodium chloride, used in foods for flavor, baking, and curing purposes. "The biggest differences are in size, shape, and texture (of the crystals) which really ...
Parma violets belong to the more exotic branch of the violet family. First appearing in Italy, in the 20th century, most types of parma violets have lavender flowers of varying sizes, which have an attractive fragrance. The origins of the parma violet are unknown, though they have been shown to be derived from two different Viola alba strains ...