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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.
Quizlet: No No No No Yes Yes No No No Yes No No SuperMemo: Yes No No No Yes Yes No Yes No Yes No Yes Topgrade: Yes Yes Yes Yes Yes Yes Yes Yes No Yes No No Software Microsoft Windows. macOS. ChromeOS. Linux. Android. iOS (iPhone, iPod Touch, iPad) BlackBerry. Windows Mobile, Pocket PC Maemo. Web browser J2ME. Palm OS
In the United States, a multivitamin/mineral supplement is defined as a supplement containing three or more vitamins and minerals that does not include herbs, hormones, or drugs, where each vitamin and mineral is included at a dose below the tolerable upper intake level as determined by the Food and Drug Board, and does not present a risk of ...
Vitamins have diverse biochemical functions. Vitamin A acts as a regulator of cell and tissue growth and differentiation. Vitamin D provides a hormone-like function, regulating mineral metabolism for bones and other organs. The B complex vitamins function as enzyme cofactors (coenzymes) or the precursors for them.
This is the most recent American version that is in the public domain. Online version of Gray's Anatomy – The complete 20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918. Anatomy of the Human Body, 20th US Edition (1918) at LibriVox (public domain audiobooks) First edition of Gray's Anatomy, 1858 (direct PDF link)
A flashcard or flash card is a card bearing information on both sides, usually intended to practice and/or aid memorization. It can be virtual (part of a flashcard software ) or physical. Typically, each flashcard bears a question or definition on one side and an answer or target term on the other.
Vitamin deficiency is the condition of a long-term lack of a vitamin. When caused by not enough vitamin intake it is classified as a primary deficiency, whereas when due to an underlying disorder such as malabsorption it is called a secondary deficiency. An underlying disorder can have 2 main causes:
Riboflavin, also known as vitamin B 2, is a vitamin found in food and sold as a dietary supplement. [3] It is essential to the formation of two major coenzymes , flavin mononucleotide and flavin adenine dinucleotide .