Evo intro Flashcards
What are the 6 propositions of Neo-Darwinian theory?
1) Reproduction → species reproduce to produce fertile offspring
2) Excess → reproduction to excess e.g not all offspring survive
3) Variation → all offspring different, environments differ greatly
4) Environ selection (natural selection)
5) Divergence → pop.s diverge when environs differ
6) Ancestry → tree of life
What is taxonomy?
Science of classification of organisms
What is phylogeny?
Study of evolutionary relationships
(intimately linked to Neo-Darwinian evolution)
Which ages were dominated by unicellular organisms?
Archean and Protersoic
Which ages were dominated by multicellular organisms?
Paleozoic, Mesozoic, cenozoic
Why is the fossil record largely incomplete?
Very few organisms that ever live will end up as fossils
Entire species of taxa may not be preserved
Why is the fossil record biased?
Centurion environs more likely to form fossils
Give some examples of hoe the Earth has changed over time
Solar lumosity
Distance between Earth and moon (tides)
Continental drift
Plate tectonic events
Miankovitch cycles
Evolving biota
Give some examples of short-medium term and rare events through time
Large Igneous Provinces (IPS)
Volcanic super eruptions
Meteorite impacts
Tsunamis
Name the 3 eras from oldest to youngest
Paleozoic
Mesozoic
Cenozoic
Name the 4 eons from oldest to youngest
Hadean
Archean
Proterzoic
Phanerzoic
Name the 12 Periods from oldest to youngest
(Please) Precambrian
(Can’t) Cambrian
(Our) Ordovician
(Stupid) Silurian
(Dog) Devonian
(Come) Carbonuferous
(Prowling?)Permian
(They) Triassic
(Just) Jurassic
(Can’t) Cretaceuos
(Talk) Tertiary
(Quietly) Quaternary
