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5 天前 · A glass of cow milk. Cows in a rotary milking parlor. Milk is a white liquid food produced by the mammary glands of mammals and the caecilian Siphonops annulatus. [1] It is the primary source of nutrition for young mammals (including breastfed human infants) before they are able to digest solid food. [2]
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1 天前 · Eugenics (/juːˈdʒɛnɪks/ yoo-JEN-iks; from Ancient Greek εύ̃ (eû) 'good, well', and -γενής (genḗs) 'come into being, growing')[1] is a set of beliefs and practices that aim to improve the genetic quality of a human population.[2][3][4] Historically, eugenicists have attempted to alter human gene pools by excluding people and ...
1 天前 · The narwhal (Monodon monoceros), is a species of toothed whale, and the only member of the genus Monodon.Its closest living relative is the beluga whale, and cases of interbreeding between the two species has been recorded. It is sexually dimorphic, as adult males are larger than females and have a long single tusk that can be up to 3 m (9.8 ft).
12 小時前 · e. The Internet (or internet) [a] is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) [b] to communicate between networks and devices. It is a network of networks that consists of private, public, academic, business, and government networks of local to global scope, linked by a broad array of ...
2 天前 · The domestic cat has a smaller skull and shorter bones than the European wildcat. [48] It averages about 46 cm (18 in) in head-to-body length and 23–25 cm (9.1–9.8 in) in height, with about 30 cm (12 in) long tails. Males are larger than females. [49] Adult domestic cats typically weigh 4–5 kg (8.8–11.0 lb).
2 天前 · In amniotes, the clitoris (/ˈklɪtərɪs/ ⓘ KLIT-ər-iss or /klɪˈtɔːrɪs/ ⓘ klih-TOR-iss; pl.: clitorises or clitorides) is a female sex organ.[1] In humans, it is the vulva's most erogenous area and generally the primary anatomical source of female sexual pleasure.[2] The clitoris is a complex structure, and its size and sensitivity ...
1 天前 · Dymaxion map of the world with the 30 largest countries and territories by area This is a list of the world's countries and their dependencies by land, water, and total area, ranked by total area.The entries in this list include, but are not limited to, those in the ISO 3166-1 standard, which includes sovereign states and dependent territories.
