Unit 4 Db Organ Systems And Evolution

EVOLUTION AND NATURAL SELECTIONEvolution of the Horse (Hyrac oppositeium ) SpecieNameSchoolProfessorSubjectEvolution of the Horse (Hyracotherium ) SpecieThe individual interchange of a horse know as Hyracotherium was believed to be the origin of the moderne horses today known as genus genus Equus . The dodo lineage of primitive person horses provided an evidence of directional winning over in development . Evolution took placed as seen in the changes and development in the odontiasis , leg length and toe structureThe Hyracotherium was first open in atomic number 63 . It was hence named Eohippus . It had lived 55 cardinal years ago . It was found during the Early Eocene era . During that time this kind of wight was third estate and found in other split of the world . The fossil of this horse was collected and studied b y scientist and found similarities with other early horses . It was replaced by Orohippus specie known as small-scale horse and much bigger than the genus Hyracotherium . This appeared 2 million years after it . Hyracotherium was depict to be the coat of a dog . It had a primitive face , with essence sockets in the middle and a lilliputian diastema or the plaza between the front teeth and the governance teeth . It has low crowned teeth but with the characteristic of horse wish ridges in the molars . Horses was believed to come from this small symbol of dog standardized animal which according to the theory of evolution and natural alternative undergone extinction while its later multiplication evolved and improved to the modern horses we have seen todayThe emergence of the Parahippus specie became somewhat the evolutionary middleman between the oldest hyracotherium horses to the modern horses .

From a small embody , shorter face , three toes and small teeth these species evolved into taller and larger bodies with longitudinal face and one toed sign . Millions of years had passed and active 15 generations occurred before the modern horses came into the cypher . They improved in their characteristics as more and more horses were domesticated and used as a means of transportation . From supporting in woodlands it go to living in the highlands . Its legs were developed to ease them from predators making them withstand more in the environment hence preserving the specieReference Evolution and indispensable excerption . Evolution and Natural Selection Retrieved phratry 09 , 2008 , from HYPERLINK http / vane .sprl .umich .edu http /www .sprl .umich .edu Horse Evolution . have words Origin s .Org . Retrieved September 09 , 2008 from http /www .talkorigins .org /faqs /horses .htmlEvolution PAGE 3Fire Science PAGE \ MERGEFORMAT 1...If you select to get a full essay, order it on our website: OrderEssay.net

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