Classification (AQA A-Level Biology): Flashcards
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10 cards from this deck
What is classification?
What is classification?
The process of organising organisms into groups to improve communication between scientists
What is taxonomy?
What is taxonomy?
The theory and practice of biological classification
What are analogous characteristics?
What are analogous characteristics?
Features with the same function but different evolutionary origins
What are homologous characteristics?
What are homologous characteristics?
Features with similar evolutionary origins regardless of current function
Name the three domains of life
Name the three domains of life
Bacteria, Archaea, Eukarya
What do bacteria cell walls contain?
What do bacteria cell walls contain?
Murein
What do Archaea cell walls lack?
What do Archaea cell walls lack?
Murein
What is a key feature of Eukarya cells?
What is a key feature of Eukarya cells?
Membrane-bound organelles
State the taxonomic hierarchy in order
State the taxonomic hierarchy in order
Domain → Kingdom → Phylum → Class → Order → Family → Genus → Species
What do closer branches on a phylogenetic tree indicate?
What do closer branches on a phylogenetic tree indicate?
More closely related species