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13 Cards in this Set

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2 theories for mass extinction?
permian age- no O2 thick air

crustacean- asterioid wipe out, iridium
era, eons, epochs
archean, proterozoic, phanerozoic

paleogene, neogene,

mesozoic, cenzoic, proterozoic
stromatolites
rocklike structure composed of bacteria in bays, shallow H2O
how did prokaryotes evolve?
electron transport chain
oxygen revolution
autotrophs -> heterotrophs
oxygen revolution
10% increase, O2 + iron = irone ore -> dissolved = lots of O2
1st eukaryotes?
endosymbiosis with mitochondria
serial endosymbiosis
says mitochondria evolved befoer plastids
SSU-rRNA
smallest subnits of ribosomes in all organims

alphobacteria = mitochondria

cyanobacteria = plastids
chimera
made from diff parts
genetic annealing
horizontal gene transfers between diff bacterial and archean lineages

you are what you eat
snowball earth hypothesis
ice age, glaciers around, and parts where enough parts melted were organisms + eukaryotes
Pangea
supercontinent
2 phylas in cambrian age?
porfira + cnidaria