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Quizlet's primary products include digital flash cards, matching games, practice electronic assessments, and live quizzes. In 2017, 1 in 2 high school students used Quizlet. [ 4 ] As of December 2021, Quizlet has over 500 million user-generated flashcard sets and more than 60 million active users.
The leaves are under 1 cm long, with a few shallow teeth on the upper half. The perennial stems of Linnaea borealis are slender, pubescent, and prostrate, growing to 20–40 centimetres (8– 15 + 1 ⁄ 2 inches) long, with opposite evergreen rounded oval leaves 3–10 millimetres (1 ⁄ 8 – 3 ⁄ 8 in) long and 2–7 mm (1 ⁄ 16 – 1 ⁄ 4 in) broad.
A field guide is a book designed to help the reader identify wildlife (flora or fauna or funga) or other objects of natural occurrence (e.g. rocks and minerals). It is generally designed to be brought into the " field " or local area where such objects exist to help distinguish between similar objects. [ 1 ]
Carl Linnaeus [a] (23 May 1707 [note 1] – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné, [3] [b] was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy". [4]
The book was written and arranged by color, keeping in mind the everyday botanist. From her personal experience learning about the wildflowers of Alaska including her being a teacher on the subject of wildflower identification, Pratt realized that color is the first characteristic people notice when observing plants. However, Pratt noted that ...
Beside his academic career he was recruited to the Swedish Social Insurance Agency when it was founded in 1902. He later served as an actuary at the insurance company Skandia (1904-1927), where his Fredholm equation was used to calculate buyback-prices. [4] From 1911, he was married to Agnes Maria Liljeblad, the secretary of Mittag-Leffler. [5]
Centaurea cyanus Scientific classification Kingdom: Plantae Clade: Tracheophytes Clade: Angiosperms Clade: Eudicots Clade: Asterids Order: Asterales Family: Asteraceae Genus: Centaurea Species: C. cyanus Binomial name Centaurea cyanus L. Centaurea cyanus (introduced species) near Peshastin, Chelan County, Washington Centaurea cyanus, commonly known as cornflower or bachelor's button, is an ...
Prunella vulgaris is a perennial herb native in Europe, Asia, Africa, and North America, and is common in most temperate climates. [4] It was introduced to many countries in the 1800s and has become invasive in the Pacific Islands, including Australia, New Zealand, and Hawaii. [4] [14] In Ireland, it is generally abundant.