9 percent of the species that have ever lived are now in extinction and about 2 billion species have evolved during the past 600 billion years (Burkhardt 19). One of the firsts to send word a world(a) theory evolution was Pierre Louis de Maupertuis. His theory was that contractable material, consisting of particles, was catching from parents to their offspring. Until the mid 19th century naturalists believed that ...If you want to study a full essay, order it on our website: OrderEssay.net
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