19.2 - The Three-Domain System (Biology / Sylvia S. Mader, Michael Windelspecht, ASU -- Twelfth Edition)

this set contains vocabulary and history of the 3-Domain system. it is derived from chapter 19.2 of the aforementioned textbook.

Kingdoms

The classification system that originally included only 3 kingdoms until it was expanded to 5 in 1969.

Domain System

A classification system invented by Carl Woese in the late 1970s that categorizes life into three domains: Bacteria, Archaea, and Eukarya.

Domain Bacteria

A domain consisting of diverse prokaryotic organisms found in large numbers in various environments, biochemically different from Archaea.

Domain Archaea

A domain of prokaryotic, single-celled organisms that reproduce asexually and are known for their ability to survive in extreme conditions.

Domain Eukarya

A domain that includes organisms that can be single or multicellular, characterized by having a membrane-bound nucleus and organelles.

Protists

A diverse group of single-celled organisms within the Domain Eukarya that lack "true tissues" and can be either heterotrophic or photosynthetic.

Fungi

Eukaryotic organisms that reproduce via spores, are typically multicellular, and are saprotrophic, meaning they absorb nutrients from decaying matter.

Plants

Multicellular, photosynthetic organisms primarily adapted to land, characterized by having true tissues and an organ system organization level.

Animals

Multicellular, motile, eukaryotic organisms that are heterotrophic and possess true tissues and an organ system organization level.