A hormone is a molecule that functions as a chemical signal. A hormone is a chemical released by a cell or a gland in one part of the body that sends out messages that affect cells in other parts of the organism. Endocrine hormone molecules are secreted (released) directly into the bloodstream. !
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The thylacine is an extinct marsupial that once roamed Tasmania and Australia. There are several preserved specimens in existence. DNA cloning offers the best chance for bringing back the thylacine. DNA cloning is a method that offers multiple same images of a gene. A point gene is injected into a round section of DNA known as a plasmid. In reproductive cloning, researchers discard a developed somatic cell such as a skin cell from an animal that they want to follow. They then carry the DNA of the donor animal's somatic cell into an egg cell or oocyte from which DNA nucleus is removed. The offspring is a clone.
Description Environmental science is an interdisciplinary academic field that integrates physical, biological and information sciences to the study of the environment, and the solution of environmental problems. Environmental science emerged from the fields of natural history and medicine during the Enlightenment.
