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PhET Interactive Simulations is part of the University of Colorado Boulder which is a member of the Association of American Universities. [10] The team changes over time and has about 16 members consisting of professors, post-doctoral students, researchers, education specialists, software engineers (sometimes contractors), educators, and administrative assistants. [11]
The African clawed frog or platanna, Xenopus laevis, was first widely used in laboratories in pregnancy assays in the first half of the 20th century.When human chorionic gonadotropin, a hormone found in substantial quantities in the urine of pregnant women, is injected into a female X. laevis, it induces them to lay eggs.
A key principle in the dissection of human cadavers (sometimes called androtomy) is the prevention of human disease to the dissector.Prevention of transmission includes the wearing of protective gear, ensuring the environment is clean, dissection technique [2] and pre-dissection tests to specimens for the presence of HIV and hepatitis viruses. [3]
Pocket Frogs shop, known as the "FrogMart". More examples of frog species classification can be seen here. Besides taming the frog, eating flies increases their happiness and, if they are not yet mature, can lessen the time left to maturation. The size of the flies vary and the bigger the fly the happier the frog.
Just as Happy Pets is offering free Avatar movie inspired "Pandora Pets", Happy Aquarium is offering a free Frog for players who manage to log into the game for 14 days straight. If you miss one ...
A fully distended vocal sac in an Australian red-eyed tree frog (Litoria chloris) Italian tree frog (Hyla intermedia) with an inflated vocal sac. The vocal sac is the flexible membrane of skin possessed by most male frogs and toads. The purpose of the vocal sac is usually as an amplification of their mating or advertisement call.
Prior to dissection for educational purposes, chloroform was administered to this common sand frog to induce anesthesia and death. The extent to which animal testing causes pain and suffering, and the capacity of animals to experience and comprehend them, is the subject of much debate. [166] [167]