A3.2 Classification and Cladistics
12 review questions with answers for A3.2 Classification and Cladistics, marked HL. Read them here, or play the set as a class game on the projector. Free to host, and students join with a code.
Science of classifying organisms into groups?
- Domain
- TaxonomyRight answer
- Cladistics
- Cladogram
All 12 questions and answers
Science of classifying organisms into groups?
Answer: Taxonomy
Two-part naming system (Genus species) for all organisms?
Answer: Binomial Nomenclature
Highest taxonomic rank (Bacteria, Archaea, Eukaryota)?
Answer: Domain
A common ancestor and all of its descendants?
Answer: Clade
Tree-like diagram showing evolutionary relationships based on shared traits?
Answer: Cladogram
Point on a cladogram where a lineage splits (representing an ancestor)?
Answer: Node
Structures with a common origin but different functions (e.g., pentadactyl limb)?
Answer: Homologous Structures
Structures with similar functions but different origins (e.g., wings in birds/insects)?
Answer: Analogous Structures
Technique using mutation rates in DNA to estimate time of species divergence?
Answer: Molecular Clock
Classification based on evolutionary history and shared ancestry?
Answer: Cladistics
Principle that the cladogram needing the fewest changes is most likely correct?
Answer: Parsimony
Process where unrelated species evolve similar traits due to similar niches?
Answer: Convergent Evolution
Play it as a class game
Play this set opens it in splycr, where you can host it for your class straight away. Hosting needs no account: put the room code on the projector, and students join from a phone with the code and their first name. Each question plays as multiple choice, and the three wrong options are other answers from the same set.