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Reproduction (or procreation or breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parent" or parents. There are two forms of reproduction: asexual and sexual. In asexual reproduction, an organism can reproduce without the involvement of another organism.
Cyperus esculentus is a highly invasive species in Oceania, Mexico, some regions of the United States, and the Caribbean, mainly by seed dispersion. [12] It is readily transported internationally, and is adaptable to re-establish in varied climate and soil environments. [12] In Japan, it is an exotic clonal weed favorable to establish in wet ...
Seed dispersal. In spermatophyte plants, seed dispersal is the movement, spread or transport of seeds away from the parent plant. [1] Plants have limited mobility and rely upon a variety of dispersal vectors to transport their seeds, including both abiotic vectors, such as the wind, and living (biotic) vectors such as birds.
Dormancy is a period in an organism 's life cycle when growth, development, and (in animals) physical activity are temporarily stopped. This minimizes metabolic activity and therefore helps an organism to conserve energy. Dormancy tends to be closely associated with environmental conditions. Organisms can synchronize entry to a dormant phase ...
Today's featured picture. The common blackbird (Turdus merula) is a species of true thrush. It breeds in Europe, Asia, and North Africa, and has been introduced to Canada, the United States, Mexico, Peru, Brazil, Argentina, Uruguay, the Falkland Islands, Chile, South Africa, Australia and New Zealand. It has several subspecies across its large ...
Hamster. Hamsters are rodents (order Rodentia) belonging to the subfamily Cricetinae, which contains 19 species classified in seven genera. [1][2] They have become established as popular small pets. [3] The best-known species of hamster is the golden or Syrian hamster (Mesocricetus auratus), which is the type most commonly kept as a pet. Other ...
MediaWiki, made in PHP. Enciclopedia Libre Universal en Español (English: Universal Free Encyclopedia in Spanish) is a Spanish-language wiki -based online encyclopedia, released under the Creative Commons Attribution-ShareAlike License 3.0. It uses the MediaWiki software. It started as a fork of the Spanish Wikipedia.
Sesame seeds are small. Their sizes vary with the thousands of varieties known. Typically, the seeds are about 3 to 4 mm long by 2 mm wide and 1 mm thick (15⁄128 to 5⁄32 × 5⁄64 × 5⁄128). The seeds are ovate, slightly flattened, and somewhat thinner at the eye of the seed (hilum) than at the opposite end. The mass of 100 seeds is 0.203 ...