classificwtion
what does phylogeny show
how closey related species are
hierarchy
small groups areanged within larger groups but no overlap between groups
what is fhe names used to name
Genus species
what is good with binominal system
it is universal and shows how closley relwted species are because different species of same genus more closey related
prokaryotae
uniceullar, no membrane bound organells, small riboses rimg of dna
protocista
uniceullar no nucleus membrame bkud. organells photosynthesis occurs
fungi
can be either uni or multi. have nucleus amd membrsne bound organells no chlorplasfs. they are like decomposers (sapronbionts) store food as glyocgon
plante
multicellur nucleus and membrane bound roganelks and chkroplast photosyntheiss and store food as star h
animaliae
multiceulouwr have nucleus and membrane bound orwgnells no chrloplasr nutrients obtained by indigestion
changes in classification symtpoms (dna base sequnce )
dna base sequmce of orgnaism for commom genes can be compared to see how closey relwted prganisms aremore closley relsred mire similairit in base seuwmce
carl woerse
intorduced an extra domain. archae, bacteria and eukaryota they are split accordimv to types of rna ribsosomes
what is prokaryote solit imto
eubacteriw and archaebacteria
how many kindoms are there
animalie, plantae protocista and fungi whereas prokaryotse split imto 2
what do fossil records provide
evidence of hos species have chnaged over time and how soecies have evolved
cytochrome c
protein foudn in mitochondria which large number of species hsve. fhis is often the protein that is compard
anamtomical adaptions
physcial adaptioms
behavioural
changes in way they act
physiological
yh
why do prganisms from dofferent taxomic hroips have simikair anatomical adaptioms
covergent evolutiom whem different species wre exposed to similiar selection pressures
natural slection process
1) random mutatiom
2) this intorduces genetic variatiom to the populatiom
3) the new allele probides a reproductive selective advanteg so this indivual kore likelg to reproduce wmd pass rhe allel onto offpsrimg
4) ober mnay generwrions, rhere will be an indrease in rhe frequency of rhis allele within thw popuwltiom