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59 Cards in this Set
- Front
- Back
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origin of life
ages |
Archaen 3.8-2.5 bya
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first euk cells
ages |
Proterozoic 2.5 bya-543 mya
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first multicellular appears
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Ediacarian 650-540 mya
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appearance of all major animal phyla
1st sheeled 1st chordates |
Cambrian
543-490 mya |
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Permain extinction 90%
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end of paleozoic
Permain era 290-248 mya |
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2nd largest mass extinction
first vertebrates glaciation of gondwana, gamma ray burst? |
Ordovician
495-439 mya |
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1st evidence of life on land
climate warms coral reefs expand |
Silurian
439-408 mya |
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1st insects
1st seed plants 1st tetrapods |
Devonian
408-353 mya |
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miss-1st reptiles
penn-1st mammal like reptiles ancient forests modern looking fish appear |
Carboniferous
354-290 mya |
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largest mass extinction in history
gymnosperm forests |
Permian
290-249 mya |
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Age of dinosaurs
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Mesozoic era
248-65 mya |
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1st dinosaur
warm climate |
Triassic
248-*206 mya |
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1st mammals
plant eating dinos dominate first bird (archeopteryx) |
Jurassic
206-144 mya |
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origin of angiosperms
extinction of dinos pangea breaks up 1st placental animals |
Cretaceous
144-65 mya |
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meteor impact 65% of all species go extinct
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K-T mass extinction
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radiation of mammals, plants, insects
warming of climate |
Tertiary period
65-1.8 mya |
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ice ages-global cooling
extinction of large animals |
Quaternary period
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2 parts of Cenozoic era
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Tertiary and Quarternary
65-1.8 mya 1.8- present |
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diversification of land animals
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Tertiary
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fossil evidence for first living organism
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Archaen
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origin of amphibians
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Devonian
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Ediacarian fossils
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Proterozoic
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ends in mass extinction from glaciation, gamma ray burst?
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Ordovician
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248-65 mya
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Mesozoic
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sudden appearance of all animal phylums
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Cambrian
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extinction of large animals due to hunting by humans
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Mesozoic
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age of dinosaurs
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Mesozoic
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ancient forests that are sources for coal
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Carboniferous
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Pond scum dominates earth
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Proterozoic
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first life on land
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Silurian
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pangea assembles
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Permian
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3.8-2.5 bya
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Archaen
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first euk cell
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Proterozoic
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96% of species go extinct at end
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Permian
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evidence of symbiosis in mito and chloro
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own genome
circular genome reproduce by binary fission |
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evidence RNA was first genetic material?
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stores info
self replicates enzymatic properties |
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3 evo trends leading to humans?
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larger brains
bipedalism focus on parental care/longer lived |
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2 ways new genes are introduced into pops?
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gene flow
recombination |
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2 ways new genes originate within genomes?
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unequal crossing over
retrotransposition |
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2 other types of human species that co-existed with homo sapiens
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homo-neanderthalensis
homo-erectus |
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phenotype def?
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displayed characteristics
light vs. dark color |
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genotype def?
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genetic composistion of an individual or population
allele frequencies |
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3.5-2.5 bya
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archaen
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2.5 bya-543 mya
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Proterozoic
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543-248 mya
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Paleozoic
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248-65 mya
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Mesozoic
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65mya-present
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cenezoic
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650-540 mya
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Ediacarian
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543-490 mya
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Cambrian
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495-439 mya
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Ordovician
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439-408 mya
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Silurian
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408-353 mya
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Devonian
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354-290 mya
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Carboniferous
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290-248 mya
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Permian
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248-206 mya
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triassic
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206-144 mya
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Jurassic
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144-65 mya
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Cretaceous
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65-1.8 mya
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Tertiary
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1.8mya-present
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Quaternary
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