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Section 13

Origins of Life

QuestionAnswer
Who is Louis Pasteur ? he was a French chemist and microbiologist and he was one of the most important founders of medical microbiology.
What did Charles Darwin conclude ? he concluded that all organisms are descendants from a common ancestor.
Natural Selection it means that the organisms that are better suited for their environment will survive and produce more offspring.
Fossils they are patterns that show that organisms that once lived on earth are no longer living and more advanced organisms appeared over time
Relative Dating dating fossils by their position in rock
Absolute Dating they use radioactive materials to place a more exact date on a fossil
Biochemical Similarities DNA that is very similar in organisms that are more related
Embryological Similarities they are embryos of many different types of organisms appear to be very similar
Shared Anatomical Structures an example is the bat wing and human arm have bones in the same position just arranged differently for their different functions
Geographic Isolation animals such as birds who fly to islands or other places and adapt to the new environment- which then results in new species (speciation)
Created by: martingomez134
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