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chapter 3, chapter 4 - Coggle Diagram
chapter 3
fossils
geological uplift
weathering and erosion
sedimentation
death and decay
Types
original
replacement
Carbon film
indirect
cast
mould
preserving environments
dry air
peat
tar
amber
mosquitos
permafrost
wooly mammoth
Dating techniques
relative
Approximate (older Vs younger)
stratigraphy
principle of superposition
index fossils
abundant
widespread
easy to identify
short lived
fluorine
the amount of fluorine ions that have been absorbed by the fossils over time
absolute
carbon dating
half life
limitations
over 50,000 yr old can't be dated
has to be living
tree ring dating
every ring = one year of growth
timeline
chapter 4
Evidences
embryology
biogeography
comparative anatomy
analogous
homologous
biochemistry
fossils
species
similar
fertile offspring
interbread
natural
selection
artificial
humans
in breeding
cross breeding
sexual
female driven selection
natural
environment
biotic
a biotic
long term can lead to speciation
simpatric
competition
no barrier
different resources
allopatric
geographical barriers
Variation
isolation
selection
speciation
human evolution
bipedalism
skeletal structure
primate features
facial trends