Of all the species that have existed on Earth 99 percent have gone extinct and even fewer make it into the fossil record and a very small fraction of those that fossilize are actually found even partially complete. Even if all of them did fossilize many would be too hard dig for many of them. And also it is highly unlikely that most would be found complete‚ due to the number of natural disasters and processes that have happened from the animal’s death to whenever it is discovered. Natural disasters
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Amphibians are becoming a vanishing species. There are a number of causes for them dieing. But the most recent and worst cause has been discovered. It is responsible for killing off our amphibians. They are dieing by the thousands. They were able to survive and hold on through past extinction spasms‚ surviving even when 95 percent of other animals died out. They even stayed alive when the dinosaurs disappeared. If amphibians could live longer than dinosaurs‚ then why are
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The Asiatic lion (Panthera leo persica)‚ also known as the Indian lion‚ is a lion subspecies that exists as a single isolated population in India’s Gujarat State. It is listed as Endangered by IUCN based on the small population size.[1] The lion population has steadily increased in Gir Forest National Park‚ more than doubling from a low of 180 individuals in 1974 to a level of 411 individuals consisting of 97 adult males‚ 162 adult females‚ 75 sub-adults‚ and 77 cubs as of April 2010.[3] The Asiatic
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THE CONCEPT OF SPECIES What are species? Species are the basic taxonomic units of biological classification. This grouping of organisms of "like kind" into discrete and stable units has been traced at least from the time of Plato and Aristotle. The term derives from the Latin "specere" (to look at‚ to behold)‚ with the meaning of "kind‚“ "quality‚" "appearance‚" "shape‚" or "a peculiar sort.“ In the past‚ species were classified according to their shape. Carl Linnaeus (1707-1778)‚ the
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Invasive Species: Asian Carp Asian carps are different species of fish that originated in many parts of Eurasia. There are 4 different types of Asian carps‚ but the silver carp and bighead carp are mostly found in the Mississippi River drainage basin and Illinois River. The silver and bighead carp first came to North America from China in 1973. Being filter feeders‚ they were imported to remove algae and suspended matter‚ ultimately trying to improve water qualities in aquaculture ponds. However
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Origin of species; Critical Evaluation of Darwinian Theory Cristina Nava North Salinas High School Instructor: Mr. Zelensky Charles Darwin implied in his book‚ On the Origin of Species (1859)‚ a theory for evolution and its mechanisms. In his book Darwin intends to convey the reader that descent with modification and natural selection‚ part of the evolution theory‚ has occurred. He also writes about the “problem of purpose” idea and how evolution and natural selection solve
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The species richness is when we talk about the actual number of species in a community. For example‚ if you go to a bottom ground forest you might see only sugar maple. Therefore‚ the species richness is only 1. Shannon Index measures species diversity too‚ but takes into account species evenness. Species evenness is when the relative abundance of the species in that community are more similar to each other. So by knowing that you have more similar species‚ this allows you to more accurately determine
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Upon reading this chapter I was intrigued. How have these indigenous religions survived hundreds of thousands of years with little to no written text? I understand that most of their teachings were passed down orally or from some form of pictures. However‚ I cannot help but wonder if maybe parts of the religions were changed along the way. These indigenous religions are usually found in remote parts of the world with almost no access to technology. With that being said‚ how did we come to know so
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their name from their painful stings and bites. They are a special type of ant that is actually a health threat and an environmental threat as well. They are small yellowish-red to black ants‚ all in the Genus: Solenopsis. The two most important species are the Red Imported Fire Ant (RIFA)‚ Solenopsis Invicta‚ and the Solenopsis xyloni. It is found in the family Formicidae. This small insect can mean big problems for people and animals. The habitat of the fire ant has contributed to its rapid
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1. Decodable Text * There are five levels of decodable text‚ ranging from highly decodable to minimally decodable. Highly decodable books use one-syllable and one-vowel-sound words‚ such as “cat‚” “fun” or “sit.” These might also use some short sight words‚ such as “a‚” “an” and “the.” Very decodable text still uses simple words‚ but those words may now have an extra letter or use blends that the students are learning in class‚ such as “this‚” “such” or “that.” Decodable text adds more of
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