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How do we know that organisms evolve? - Coggle Diagram
How do we know that organisms evolve?
Evidence of evolution
fossil record
anatomy and morphology
embryology
molecular traits / biochemistry
biogeography
types of structures
homologous
analogous
vestigial
VIDA
variation
inherited
differential reproduction and survival
adaptation
fitness
Mechanisms of evolution
small population size
nonrandom mating
mutations
DNA mutations / biochemical changes
germ line mutations
somatic cell mutations
gene flow from emigration/immigration
adaptations
offspring compete
natural selection
directional
disruptive
stabilizing
genetic drift
bottleneck effect
founder effect
reproductive isolation
pre-zygotic barriers
post-zygotic barriers
Inherited Traits
variation
random mutations
recombination accompanying sexual reproduction
from generations in past
traits increasing survivability passed on
acquired traits NOT passed on