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23 Cards in this Set
- Front
- Back
fossils are...
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clues to the past
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when was the world first formed?
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4.6 billion years ago
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what was the earth like in its early stage?
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very HOT
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what scientist studies fossils?
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a paleontologist
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when did the first life evolve?
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3.5 billion years ago
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non living material can produce life is ______________
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spontaneous generation
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experimented with meat and maggots
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Redi
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biogenesis
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living comes from living things
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Oparin
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suggested the atmosphere plus lighting made the first "primordial soup"
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tested Oparin's theory out
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Miller and Urey
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Sidney Fox
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showed how chains of amino acids could form proteins
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the first cells were.....
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PROKARYOTES!!!
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theory that eukaryotic cells arose from prokaryotic cells
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the Endosymbiotic Theory
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the islands Charles Darwin visited
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Galapagos Islands
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"organisms acquired or lost certain traits during their lifetime that were passed down to their offspring"
person and theory name |
Lamarck
Use and Disuse theory |
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artificial selection
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breeders determine what they want to have in their animals and breed them
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natural selection
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nature picks the traits that can best survive and live on to reproduce
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darwin's book
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On the Origin of Species
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any change in the gene pool of a population is called ___________
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evolution
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three types of natural selection
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directional, stabalizing, and disruptive
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directional selection is....
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when an extreme value of a trait is favored, so the population moves in a certain direction
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stabalizing selection is...
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favoring the average trait
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disruptive selection is...
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favoring the extremes on either end
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