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Hosted by Mrs. Kippen Vocab Fossils Darwin Evidence 100 100 100 100 200 200 200 200 300 300 300 300 400 400 400 400 500 500 500 500 What is the same species? Organisms that can mate with one another and produce fertile offspring Row 1, Col 1 What is a fossil? The preserved remains or traces of organisms that lived in the past. 1,2 What is slowly? The length of time Darwin thought it took for species to evolve. 1,3 What are fossils? Remains of a once living organisms that can be used as evidence of a common ancestor. 1,4 What are genes? Control traits 2,1 What is a petrified fossil? A fossil formed when minerals replace all or part of an organism 2,2 What is natural selection? The process by which individuals that are better adapted to their environment are more likely to survive and reproduce. 2,3 What are homologous structures? Similar structures that are evidence that two organisms share a common ancestor. 2,4 What is a mutation? Any change in a gene or chromosome 3,1 What is relative dating? Method to compare the ages of two fossils based on the layer of rock in which it was found 3,2 What are the Galapagos Islands? The location of most of Darwin’s observations which lead to his Theory of evolution 3,3 What are evidence of a common ancestor? Fossils, similarities in early development, similarities in body structure, DNA, and protein structure . 3,4 What is an adaptation? A trait that helps an organism survive and reproduce 4,1 What is 300 years? The length of time it would take for 30g of an element to decay to 7.5g when the half life is 150 years . 4,2 What is selective breeding? Darwin studied this in order to develop his theory of evolution. 4,3 What is evidence that the ancestors of whales once walked on land? Scientists have found fossils of whale-like creatures that had legs . 4,4 What are variations? Differences between members of the same species 5,1 What is 635 years? The length of time it would take for 440g of an element to decay to 13.75g when the half life is 127 years. 5,2 What are Darwin’s observations? The beaks of finches were different on different islands according to what food was available. 5,3 What are 3 causes of natural selection? Overproduction, Variations, and Competition . 5,4