Classifying organisms Flashcards
Taxonomy
The science of classifying organisms (based on structure, function, biochemistry, or other relationships)
Hierarchy of biological classification
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species (dear king phillip came over for good soup)
Domain of life
The most general level of life that an organism can be classified into
(Archaea, Bacteria, Eukarya)
Archaea
Prokaryotic cells
often live in extreme environments
(membranes composed of branched hydrogen chains)
Bacteria
- prokaryotic cells
- fatty membranes
- ex: cyanobacteria
Eukarya
- eukaryotic cells
- fatty membranes
- divided into Protista (molds, alagae), Fungi (yeasts, molds), Plantae (plants), Animalia (animals)
Kingdom
- second highest rank
- Monera (bacteria and archaea), Protista, plantae, fungi, and animalia
Monera
Prokaryotic and unicellular (archaea and bacteria)
Animalia
Eukaryotic and heterotrophic (worms, reptiles, mammals, birds, etc)
Plantae
Eukaryotic and autotrophic (flowers, moss, ferns)
Fungi
Unicellular and eukaryotic cells (molds, mushrooms)
Protista
Eukaryotic cells (algae)
Phylum
- a scientific term grouping together related organisms on the basis of their fundamental characteristics
- below kingdom, above class
Class
- Organisms that share common attributes
- below phylum, above order
Order
A group of related families,
- below order, above family