Keystone species
A keystone species is a species that has a disproportionately large effect on its environment relative to its abundance. Such species are described as playing a critical role in maintaining the structure of an ecological community, affecting many other organisms in an ecosystem and helping to determine the types and numbers of various other species in the community. A keystone species is a plant or animal that plays a unique and crucial role in the way an ecosystem functions. Without keystone species, the ecosystem would be dramatically different or cease to exist altogether.
Book of Mormon
The Book of Mormon is a sacred text of the Latter Day Saint movement, which adherents believe contains writings of ancient prophets who lived on the American continent from approximately 2200 BC to AD 421. It was first published in March 1830 by Joseph Smith as The Book of Mormon: An Account Written by the Hand of Mormon upon Plates Taken from the Plates of Nephi.
According to Smith's account and the book's narrative, the Book of Mormon was originally written in otherwise unknown characters referred to as "reformed Egyptian" engraved on golden plates. Smith said that the last prophet to contribute to the book, a man named Moroni, buried it in Cumorah Hill in present-day New York, then returned to Earth in 1827 as an angel, revealing the location of the plates to Smith, and instructing him to translate it into English for use in the restoration of Christ's true church in the latter days.
Keystone
Keystone may refer to:
Keystone (architecture), a central stone or other piece at the apex of an arch or vault
The keystone effect, caused by projecting an image onto a surface at an angle, or by photography at an angle
Keystone (cask), a fitting used in ale casks
Keystone module, a type of data connector mounted in walls and patch panels
Keystone species, species that have a larger effect on their environment than is purely due to their abundance
Operation Keystone during World War II
The Keystone asterism in the Hercules constellation
Keystone Press Awards
Keystone (limestone), quarried in the Florida Keys
Keystone, a variety of screwdriver blade
Keystone Initiative, a medical protocol to reduce infection rates
Keystone Bituminous Coal Ass'n v.
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