SB4d Classification Flashcards
classification?
sorting organisms into groups based on their characteristics
what is grouped as a species?
organisms that have many characteristics in common
what is grouped as a genus?
species that have many characteristics in common
what is grouped as amfamily?
a genus with similar features to each other
classification in order bottom to top? 7
species, genus, family, order, class, phylum, kingdom
what are the 5 kingdoms?
~animalia
~plantae
~fungi
~protoctista
~prokaryotae
animalia characteristics? 4
~multicellular with cells arranged into tissues and organs
~heterotrophic feeders: no chlorophyll
~no cell walls
~complex cell structure with a nucleus
plantae characteristics? 4
~multicellular with cells arranged into tissues and organs
~autotrophic feeders: use chlorophyll
~cell walls made of cellulose
~complex cell structure with a nucleus
fungi characteristics? 4
~multicellular apart from yeasts
~cell walls made of chitin, not cellulose
~saprophytic feeders: feed on dead or waste matter
~complex cell structure with a nucleus
protoctista characteristics? 3
~mostly unicellular (some are multicellular)
~complex cell structure with a nucleus.
~some have cell walls made of different substances
prokaryotae characteristics? 3
~unicellular
~simple cell structure with no nucleus
~flexible cell walls
what happens when a virus enters a cell?
virus changes the way the cell works, the cell starts to make copies of the virus
is a virus alive?
virus itself doesn’t show the behaviour of living things
problems with classification?
many different species have similar external features so the anatomical similarities are used
3 domains?
~archaea
~bacteria
~eukarya
