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evolution - Coggle Diagram
evolution
how gene pools change
immigration/emigration
non random mating
population shrink/grow
genetic mutations
WAYS THEY CHANGE:
adaptations
EQUILIBRIUM:
allele frequencies don't change
environment changes anyway
impossible just a theory
genetic drift
founder effect (small population)
bottleneck effect (natural disaster)
the loss of alleles (less genetic diversity)
TYPES OF GENETIC DRIFT:
cladograms/phylogenetic trees
kinda the same
far right closer related
outgroup first out
FEATURES:
survival of the fittest
lamark theory (not real)
change in lifetime
not possible
based on needs
LAMARK:
darwin theory
change over generations
through dna passed down
proven
DARWIN:
evolution is not goal oriented
evidence for evolution
molecular evidence (dna)
structural evidence
analogous (function)
vestigal (unused)
other types
fossils
antibiotic resistance
biogeography
homologous (related)
EVIDENCE:
speciation
allopatric: geography
geographical (mountains/oceans/etc.)
sympatric: not geography
behavioral (mating rituals/sexual selection/courtship rituals)
gametic (sperm/egg cells unable)
temporal (diff season or time of day)
ecological (diff part of ecosystem)
mechanical (physically cannot do it)
PREZYGOTIC:
POSTZYGOTIC:
reduced hybrid viability (genetics impair development)
reduced hybrid fertility (chromosomes make infertile)
hybrid breakdown (children cant have children)
natural vs. artificial selection
artificial selection (purposeful protection of traits)
natural selection (survival of the fittest)
disruptive selection (one hump goes into two side humps)
stabilizing selection (graph gets taller and narrower to middle)
directional selection (graph moves left or right)
TYPES OF SELECTION:
adaptive radiation/adaption
radiation (rapid speciation)
adaption (any evolved trait)
species concept
postzygotic reasons
adaptions to nature
sexual selection
courtship rituals
non random mating