biodiversity and taxonomy Flashcards
what are the domains of life
- bacteria
- archaea
- eukarya
what type of cells do the domains of life belong to?
- prokaryotic cells: bacteria, archaea
- eukaryotic cells: eukarya
name the kingdoms
- eubateria
- archaebacteria
- protists
- plantae
- fungi
- animalia
organisms are placed into their kingdoms based on…
- cell type: complex or simple
- ability to make food
- number of cells in their body
eubacteria
- single-celled, prokaryotic
- bacteria you are probably most familiar with
- most are beneficial (some produce vitamins and foods like yogurt, but some (like Streptococci) can give you strep throat
archaebacteria
- single celled, prokaryotic
- extremophiles (can exist in extreme settings, such as temperature, thermal vents, acidity, no oxygen, boiling water, etc)
animalia
- largest kingdom, abt. 1.5 million species
- multicellular and eukaryotic
- heterotrophs
plantae/plants
- second largest kingdom (400,000 species)
- multicellular, eukaryotic
- autotrophs
fungi
- most multicellular (except yeast), all eukaryotic
- cannot produce its own food
- obtain food from decaying plants in soil
- abt. 155,000 species
protists
- most unicellular, all eukaryotic
- all microscopic organisms that do not fall under the others are protists
- organisms in this kingdom are all very different from each other
difference between prokaryotic and eukaryotic cells
eukaryotic cells have nucleuses
what falls under each domain?
archaea: archaebacteria
bacteria: eubacteria
eukarya: protista, fungi, plants, animals
eubacteria have a cell wall made of ___
peptidoglycan
taxonomy
the science of naming organisms and assigning them to groups
name the taxonomic levels
domain, kingdom, phyllum, class, order, family, genus, species
- dear king phillip came over for green soup
species
-organisms similar in shape and structure (morphology)
-organisms that can interbreed and produce fertile offspring
what is the present day system of classification based on?
morphology: shape and other structural features of an organism
who invented the Linnaean system?
carolus linnaeus invented bionomial nomenclature
what are the 2 parts of the Linnaean system of classification?
- genus name: capitalized
- specific name: lowercase
writing rules for binomial nomenclature?
- must italicize
- if handwritten, underline