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7 Cards in this Set
- Front
- Back
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Where is the most likely place where life began?
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deep ocean
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What is the possible connection w/ outerspace?
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1. panspermia: aliens brought humans to earth
2. organic compounds are found in meteorites found today |
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Why are protobionts possible precursors to simple cells?
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1. they sort of reproduce
2. little droplets will break off of little droplets (same as initial protobiont |
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What was most likely the first genetic material?
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RNA
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What are the 1st cells?
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prokaryotes
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How did multicellular organism probably evolve?
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1. protist live in groups called colonies
2. most natural shape sphere forms 3. cell specialization i. some cells have better acces to the environment ii. some have better protection iii. started sharing resources 4. enfolding forms a digestive cavity |
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How did eukaryotic cells probably evolve?
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Endosymbiosis
1. prokaryotes engulf, or eat, other prokaryotic cells 2. believed that some cells weren't eaten but helped the cell inside forming eukaryotic cells |
