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17 Cards in this Set
- Front
- Back
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Evolution |
Is the process by which modern organisms have descended from ancient organisms. |
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Scientific theory |
Is a well supported testable explanation of phenomena that have occurred |
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1831 |
Darwin set sail around the world |
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Darwin’s hypothesis has become…. |
The theory of evolution (aka natural selection) |
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He observed many plants and animals were |
Suited to the environment they inhabited |
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He was impressed by the ways in which organisms |
Survived and produced offspring |
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Darwin collected the preserved remains of ancient organisms called |
Fossils |
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Artificial selection |
Is the selection by humans for breeding useful traits from the natural variation among different organisms |
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Darwin compared processes in nature to |
Artificial selection |
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Darwin developed a scientific hypothesis to |
Explain how evolution occurs |
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Survival of the fittest |
High birth rates and a shortage of life’s basic needs would force organisms to compete for resources |
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What is fitness? |
The ability of an individual to survive and reproduce in it’s scientific environment |
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What is adaption |
An adaption in any inherited characteristics that increases an organism chance of survival so they can reproduce |
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What is natural selection |
Because of its similarities to artificial selection Darwin referred to the survival of the fittest as natural selection |
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Over time natural selection results in changes in the |
Inherited characteristics of a population |
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Natural selection produces organisms that have |
-Different structures -establish different niches -or occupy different habitats |
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Each living species has descended with changes from other |
Species over time |
