Classification of Living Things Flashcards
Grade 6 · Science · Flashcards
Study taxonomy vocabulary, the classification hierarchy, and scientific naming conventions.
Flashcards
- Taxonomy
- The science of identifying, naming, and classifying organisms.
- Carl Linnaeus
- Swedish scientist who created the modern classification system and binomial nomenclature in the 1700s.
- Classification hierarchy
- 8 levels from broad to specific: Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.
- Domain
- The broadest classification level; three domains: Bacteria, Archaea, Eukarya.
- Kingdom
- Second-broadest level; Eukarya has four kingdoms: Animalia, Plantae, Fungi, Protista.
- Phylum
- Third classification level; groups animals by major body plan (e.g., Chordata have backbones).
- Species
- The most specific level; members can interbreed and produce fertile offspring.
- Binomial nomenclature
- Two-part Latin naming: Genus (capitalized) + species (lowercase), both italicized.
- Homo sapiens
- Scientific name for modern humans; Homo = genus, sapiens = species ('wise').
- Eukarya
- Domain of organisms with true membrane-bound nuclei; includes all plants, animals, fungi, and protists.
- Prokaryote
- An organism without a membrane-bound nucleus; belongs to domain Bacteria or Archaea.
- Animalia
- The kingdom containing multicellular, heterotrophic organisms (animals).
- Plantae
- The kingdom containing multicellular, photosynthetic organisms (plants).
- Fungi
- The kingdom containing organisms that absorb nutrients from dead or living matter (mushrooms, mold).
- Protista
- A diverse kingdom of mostly single-celled eukaryotes that don't fit other kingdoms (algae, amoeba).
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