Week 1 Flashcards
Carl Linnaeus
Father of taxonomy (field of naming and classifying organisms)
Gave every organism he described a scientific name (binomial nomenclature)
Carl Linnaeus
Binomial nomenclature
The scientific name of a group of organisms of the same type (e.g., homo sapiens)
Must be unique to one type of organism
Species name
includes the genus and the “specific epithet”
Species name
taxonomy
field of naming and classifying organisms
mnemonic for nomenclature
- Domain > Kingdom > Phylum > Class > Order > Family > Genus > Species
- Did King Phillip Come Over For Great Sex?
Three domains of life
Bacteria
Archaea
Eukarya
Simple single celled organisms that lack a nucleus and membrane bound organelles
Bacteria
prokaryote meaning
before nucleus
Prokaryotes
Bacteria and Archaea
Single celled prokaryotes that live in extreme conditions (thermal vents, hot springs, high salinity zones, etc.)
Archaea
no known harmful members of this domain to human life
archaea
Eukarya
Single-celled and multicellular organisms that have a nucleus and membrane-bound organelles (this is humanity’s domain)
Divided into 4 kingdoms
Eukarya
4 kingdoms of Eukarya
Plantae
Fungi
Animalia
Protista
Multicellular, autotrophic, cell walls of cellulose
Plantae
examples of plantae
Mosses, ferns, gymnosperms, and flowering plants
Multicellular, Heterotrophic, cell walls of chitin
Fungi
Examples of fungi
Yeast, molds, and mushrooms
Multicellular, Heterotrophic, no cell walls
Animalia
Motile at least part of life
Animalia
(mostly) single celled, autotrophic and heterotrophic species, some have cell walls
Protista
examples of protista
Amoebas, algae, slime molds, diatoms, etc.
If it has a nucleus but isn’t a plant, fungus, or animal
Protist
Linnaeus classified based on
appearance
Evolution
Change in the genetic makeup of populations of organisms over time
Illustrated hypotheses of evolutionary relatedness among different biological groups
Phylogenetic tree or phylogeny
Taxon
Group of biological entities
Node
Common ancestor, point where two taxa meetup, representing where the two groups separated in history
Lineage
Direct line of descent from an ancestor
Which node is most recent common ancestor?
first
Best way to read phylogenetic tree?
top down