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10 Cards in this Set
- Front
- Back
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Biogenisis
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the idea that living things come from other living things. Life can arise from non living material.
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(Francesco) Redi
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allowed meat to decay in an open jar, then observed the maggots tuat appeared.
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Leeuwenhoek
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invented the microscope
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(Lazzaro) Spallanzani
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BROTH. Performed an expieriment to test spontaneous generation of microorganisms.
Concluded that broth became contaminated when microorganisms from air entered flask. |
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(Louis) Pasteur
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Proved that spontaneous generation doesn't exist. Used a curved neck flask to trap microorganisms from the air.
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Radio-active dating
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methods of establishing the age of materials
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half life
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the length of time it takes for half of the atoms of the isotope to decay.
***the half life of carbon-14 is 5,730 yrs. |
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Urey and Miller
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HYPOTHESISZED by expierimenting. Built a chamber that simulated early earth. Able to create simple amino acids in his expieriment which are building blocks of life.
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Oparin
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hypothesised about the origin of life on earth. He stated what the atmosphere of early earth was like.
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Prokaryotes
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first organisms on earth (Ex. bacteria). these were probably anaerobic because the yong lacked oxygen.
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