classification- (module 4) Flashcards
give the order of naming something in taxonomy
kingdom, phylum, class, order, family, genus, species
how are living things classified?
by the features they have in common
why can some species interbreed but are not classified as the same species? how does this affect fertility?
they are genetically similar and have similar mating, they are infertile due to an odd number of chromosomes so meiosis cant take place
why is classification important?- 3 reasons
to identify species, predict characteristics and find evolutionary links.
what are the 5 kingdoms?
Animalia, plante, fungi, protocista, protocistae
what are the new 3 domains?
archae, eukarya and bacteria
what 3 differences are used to classify into the 3 domains?
sequences of nucleotides in rRNA, cell membrane lipid structure and sensitivity to antibiotics
what is archaebacterial?
don’t have peptidoglycan in cell walls and can live in extreme environments
what is eubacteria?
have peptidoglycan and are found in all environments
what is phylogenetics?
evolutionary relationships between organisms
what do phylogenetic trees show?
evolutionary relationships, evolution from a common ancestor and similarities and differences between physical and genetic makeup
where does evidence for phylogenetic trees come from?
mostly fossils
