1.3 Transitional fossils A transitional fossil is any fossilised remains of a life form that has traits common to both a presumed ancestral group and its presumed derived descendant group. Transitional fossils are used as evidence to support evolutionary theory as they are suggested to demonstrate the gradual transition from one species to another through a multitude of changes. In essence‚ the transitional fossils are the remains of the species that have gone extinct‚ and these species are represented
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From The Damned Human Race by Mark Twain Mark Twain is a central figure in American literature. The Adventures of Huckleberry Finn‚ his finest work‚ is the story of a journey down the Mississippi by two memorable figures‚ a white boy and a black slave. Twain was born Samuel Langhorne Clemens in 1835 and was raised in Hannibal‚ Missouri. During his early years‚ he worked as a riverboat pilot‚ newspaper reporter‚ printer‚ and gold prospector. Although his popular image is as the author of such
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The Appalachian Mountains The Appalachian mountain system dominates the Eastern United States and seperates the Eastern seaboard from the interior with a belt of uplands that extends nearly 1‚500 miles from northeastern Alabama to the Canadian border.; They are old‚ complex mountains‚ eroded from much older and greater ranges. The present topography is a result of erosion that has carved the weak rocks away‚ leaving a skeleton of resistant rocks behind as highlands. Because of this weathering‚ geologic
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Sahara Desert The Sahara Desert is the world’s largest desert area. The word Sahara comes from the Arabic word sahra’‚ meaning desert. It extends from the Africa’s Atlantic Ocean side to the Red Sea and consists of the countries of Morocco‚ Algeria‚ Tunisia‚ Libya‚ Egypt‚ Mauritania‚ Mali‚ Niger‚ Chad‚ and Sudan. It is about 5‚200 miles long. Overall‚ the Sahara Desert covers 3‚500‚000 square miles. The geography of the desert is varied. In the west‚ the Sahara is rocky with varied elevation
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EGG – ITS COMPOSITION AND FUNCTIONS Eggs are laid by females of many different species‚ including birds‚ reptiles‚ amphibians‚ and fish‚ and have probably been eaten by mankind for millennia. Bird and reptile eggs consist of a protective eggshell‚ albumen (egg white)‚ and vittles (egg yolk)‚ contained within various thin membranes. Popular choices for egg consumption are chicken‚ duck‚ quail‚ roe‚ and caviar‚ but the egg most often consumed by humans is the chicken egg‚ by a wide
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studies on the population genetics of the green sea turtle. Through their DNA research‚ it was discovered that human impact has drastically reduced the genetic diversity within the green sea turtle population. In the future‚ this can prevent the reptiles from adapting and evolving because the ones that are left are extremely alike. A natural disaster or a catastrophic event can greatly diminish the number of living green sea turtles‚ triggering their approaching extinction. Even in the population
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flow over and past your body. Looking up into the sky inspires the heart‚ who knows who is looking back at you. A second reason Cuyamaca is a great inspirational getaway is for the wildlife living on the reserve. It has many bird and squirrel and reptile life‚ also there is said to be mountain lions but they are a rare sight to see. The types of birds at cuyamaca falls
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physical features inside and out. Myths and facts will be revealed‚ as well as a few comparisons between sexes. Though there are many species of chameleons‚ everything discussed will be in reference to them as a whole. Chameleons are part of the reptile family. Half of their population lives and originated from Madagascar. Others can be found in the Middle East‚ Europe‚ and India. Fossils
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example‚ the Aye-aye lemur feeds on insects that it finds by tapping on a tree with its long middle finger. Most other lemurs feed on either insect or fruit and plants as well. The Fossa is a nocturnal carnivore and feeds on everything from tiny reptiles to small animals‚ including chickens that come from nearby villages. The Tenrec feeds on insects just as the Aye-aye lemur. My last example is the Pill Millipede insect that eats decaying leaves and other dead plant materials. As you can tell from
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The scientific classification for the fox is Vulpes. They are closer to dogs in modern classification because they are in the same biological family‚ canidae. The family includes other dog type creatures such as wolves‚ coyotes and jackals. Some people say that foxes are very so similar/genetically related to dogs that they can produce offspring together‚ but still isn’t proven yet. On the other hand‚ the cats are in a complete different biological family. The cats are in the family felidae‚ which
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