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22 Cards in this Set
- Front
- Back
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synapomorphies |
shared derived characters ie. "hair" or "number of legs" |
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petrification |
plant material replaced with minerals |
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amber (fossils) |
fossilized plant sap very helpful in identify organism |
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impression (fossils) |
no organic matter |
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compression (fossils) |
some organic matter |
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prokaryotes |
bacteria and archaea |
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protists |
diverse group of eukaryotes true nucleus membrane band and porous
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geological time divisions acronym |
Camels Often Sit Down Carefully, Perhaps Their Joints Creak, Thank Y(Q)ou |
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hominin evolution |
apes to early humans |
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Main geological eras |
Paleozoic (old life) mesozoic (middle life) cenozoic (new life) |
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in apes: brow ridge |
reinforces face bones |
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in apes: sagittal crest and zygomatic arch |
attachment for jaw |
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in apes: forehead slope |
cranial development (more space)
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in apes: canine tooth length |
eating meat |
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in apes: foramen magnum |
(where spinal cord attaches) move more under head b/c started standing |
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macroevolution |
major evolutionary transition occurring at the level of *species* or higher |
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cladogram |
branching phylogenetic tree
shows species divergence from common ancestor |
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taxon |
consists of all the species within a group of organisms at any level |
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clade |
consists of a group of organisms and includes the ancestor +descendents |
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3 domains of life |
eubacteria, archaea, and eukarya (us) |
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geological time broken down into: |
eons -> eras (paelozoic, mesozoic, cenozoic) -> periods -> epochs |
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evidence of macroevolution |
1. fossil record 2. molecular sequence data 3. structural homology 4. developmental similarity 5. vestigial structures 6. convergent evolution |
