Evolution by natural selection
thffilitith
onstatesthata
organismsweseetodayarosefrom EVIDENCE
thatexistedinpast
organisms
Maylookoiffasthingschangeover
typttimiliatibonesiteetnisnens
periodoftime Process i coveredinsediment
theory
Scientific pollen
microfossils Bacteriainvertebratesembryos aSottbooypartsdecay
NBintoonvegetationtempinabitats
pollen 3Harderpartsbecameporous
nanma
Footprints
4mineralsaitstromsedimentinfiltrat
sina.ie coversshellsskulls
impressionsmoulds sediment poresinbones
that
livingorganismsundergoneoverlong preserved
organisms doesn'thavetobeveryold 5 Boneshardenintostone
perioosoftme by
WHATisREQUIRED covered sedimentquickly 6morelayersotsedimentpressure
presentday from sandmudlava
to
All decended
lifeforms hardensedimentlayers
itdecomposesbody
those
relatedto inpast eaten
scattered nocompletefossil Ust recordintoon
Fossil
modifiedtromonegenerationtonext of
origin species.tw
Fossilstoundinrockst
thatshowsorderotdevelopment.de
1
Earth's
yigag FyFhMMtME
about4.6
billion old
years
i canshowstepsinchangesouured transitional
istlifeforms sobillionyearsago
Homologydivergentevolution
modern than
lifeformscomplex part
manylitetormstrompast extinct
nomoffiffffffiffhereotomcomm
variety
ancestor Structureswitnsamebasicpianin
i
ofdiffanimals indicatestherewascommon
creatures islandssplitotffromcontnents ancestor
similarspeciesatdiff
places recoviousestructuresfordiff functions modification
bydesient
ÉFÉbhrgy
mo AllorganismsonEarth
shorsimilartesinnaconstruction
fromsame4
nucleotides
sequencesindifforganismssimilar
gene
process
bywhichproteinsynthesisoccursisexatelysame
mRNAtRNAribosomes so
aminoacids
ie thecloserthesimilaritymorecloselyrelated
to
organismsare eachother
Geneticsshowsinheritance variationin
ingenotypechangemphenotype
phenotypes genotypeschange
variationparsedontromparent
genotypeotpopulationcanchangewitntime
, ARIATION
species group similarorganismsof offspring viablemature
a bletointerbreeoproovietertile adultsproduceoffspring
population belongtosame
s peciesoccupyingthesamehabitatatsametime
variationsareexpression genotypicvariations
phenotypic of molecules
behaviours internalstruiturescells organic
OURCES
OFVARIATION meiosis mutations reproduction
meiosis crossingover randomarvangementoschromosomes
crossingover newcombinationsofmaternal paternalmaterial
chromatidsinhomologous
prophase non
sister pairswapgeneticmaterialrandomly
Randomarrangementofchromosomes
chromosomesarrangedat eavatorranoomanounpredictable
homologous
mutations changesstructureofgenechromosome genotype DNAreputation
occurduring
genotype influencesphenotype newdiffcharacteristics
fromonegenerationto thenext
poolchange
fixedin population gene
typesofmutations Neutralsilent noconsequences noeffect
Detrimentallethal leadsto withsynthesisofproteins
death problems
usefuladvantageous betterprotein characteristics better
made NBfornaturalseleition
reproduction randomfertilisation Randommating
RandomFertilliation millionnonidenticalsperm
cells ovageniticallyditt fertilisationrandom
Randommating naturalpopulations leadtodiffsetotottspringtrommatingpair
matingmechanisms hierarchiesbetweenmalesfemales selectionby
females
ypesOFVARIATION continuous discontinuous significant
continuous JeanBaptistede
Lamarck 1744 1829
rangeofdiffphenotypesfor norangeindiff phenotypes m decent
particularcharacteristics forparticular characteristic linkedtoevironment
diversity
inheritance
Egheightmassskincolours EgBloodgroups ABAB'd otaquiredcharacteristics
charlesyell 17971875
polygenicinheritance
ofsingle
controlled alleles
by alleles describedgeological
morethanigeneatonelocuson gene multiple processes
mummy EarthBillonsotyearsold
Environmenthareffecton hasnoinfluence
Environment Alfred Wallace outlinedspeciation survivaloffittest
Russel
phenotypicexpression onphenotypes Mandel principlesofinheritance
Gregor and
lawsofgenetics
Linegraph Bargraph Darwin Originotspecies
Charles
bellshapedcurve discontinuous bellcurve
thffilitith
onstatesthata
organismsweseetodayarosefrom EVIDENCE
thatexistedinpast
organisms
Maylookoiffasthingschangeover
typttimiliatibonesiteetnisnens
periodoftime Process i coveredinsediment
theory
Scientific pollen
microfossils Bacteriainvertebratesembryos aSottbooypartsdecay
NBintoonvegetationtempinabitats
pollen 3Harderpartsbecameporous
nanma
Footprints
4mineralsaitstromsedimentinfiltrat
sina.ie coversshellsskulls
impressionsmoulds sediment poresinbones
that
livingorganismsundergoneoverlong preserved
organisms doesn'thavetobeveryold 5 Boneshardenintostone
perioosoftme by
WHATisREQUIRED covered sedimentquickly 6morelayersotsedimentpressure
presentday from sandmudlava
to
All decended
lifeforms hardensedimentlayers
itdecomposesbody
those
relatedto inpast eaten
scattered nocompletefossil Ust recordintoon
Fossil
modifiedtromonegenerationtonext of
origin species.tw
Fossilstoundinrockst
thatshowsorderotdevelopment.de
1
Earth's
yigag FyFhMMtME
about4.6
billion old
years
i canshowstepsinchangesouured transitional
istlifeforms sobillionyearsago
Homologydivergentevolution
modern than
lifeformscomplex part
manylitetormstrompast extinct
nomoffiffffffiffhereotomcomm
variety
ancestor Structureswitnsamebasicpianin
i
ofdiffanimals indicatestherewascommon
creatures islandssplitotffromcontnents ancestor
similarspeciesatdiff
places recoviousestructuresfordiff functions modification
bydesient
ÉFÉbhrgy
mo AllorganismsonEarth
shorsimilartesinnaconstruction
fromsame4
nucleotides
sequencesindifforganismssimilar
gene
process
bywhichproteinsynthesisoccursisexatelysame
mRNAtRNAribosomes so
aminoacids
ie thecloserthesimilaritymorecloselyrelated
to
organismsare eachother
Geneticsshowsinheritance variationin
ingenotypechangemphenotype
phenotypes genotypeschange
variationparsedontromparent
genotypeotpopulationcanchangewitntime
, ARIATION
species group similarorganismsof offspring viablemature
a bletointerbreeoproovietertile adultsproduceoffspring
population belongtosame
s peciesoccupyingthesamehabitatatsametime
variationsareexpression genotypicvariations
phenotypic of molecules
behaviours internalstruiturescells organic
OURCES
OFVARIATION meiosis mutations reproduction
meiosis crossingover randomarvangementoschromosomes
crossingover newcombinationsofmaternal paternalmaterial
chromatidsinhomologous
prophase non
sister pairswapgeneticmaterialrandomly
Randomarrangementofchromosomes
chromosomesarrangedat eavatorranoomanounpredictable
homologous
mutations changesstructureofgenechromosome genotype DNAreputation
occurduring
genotype influencesphenotype newdiffcharacteristics
fromonegenerationto thenext
poolchange
fixedin population gene
typesofmutations Neutralsilent noconsequences noeffect
Detrimentallethal leadsto withsynthesisofproteins
death problems
usefuladvantageous betterprotein characteristics better
made NBfornaturalseleition
reproduction randomfertilisation Randommating
RandomFertilliation millionnonidenticalsperm
cells ovageniticallyditt fertilisationrandom
Randommating naturalpopulations leadtodiffsetotottspringtrommatingpair
matingmechanisms hierarchiesbetweenmalesfemales selectionby
females
ypesOFVARIATION continuous discontinuous significant
continuous JeanBaptistede
Lamarck 1744 1829
rangeofdiffphenotypesfor norangeindiff phenotypes m decent
particularcharacteristics forparticular characteristic linkedtoevironment
diversity
inheritance
Egheightmassskincolours EgBloodgroups ABAB'd otaquiredcharacteristics
charlesyell 17971875
polygenicinheritance
ofsingle
controlled alleles
by alleles describedgeological
morethanigeneatonelocuson gene multiple processes
mummy EarthBillonsotyearsold
Environmenthareffecton hasnoinfluence
Environment Alfred Wallace outlinedspeciation survivaloffittest
Russel
phenotypicexpression onphenotypes Mandel principlesofinheritance
Gregor and
lawsofgenetics
Linegraph Bargraph Darwin Originotspecies
Charles
bellshapedcurve discontinuous bellcurve
