Classification and Dichotomous Keys - Quiz

1. What is classification in biology?

• Deciding which species have the best features
• Determining class systems for groups of animals
• The process of sorting of species into groups
• The splitting all species into the animal or plant kingdom

2. Who came up with the first hierarchical system of classification and the system of binomial nomenclature?

• Linnaeus
• Darwin
• Aristotle
• Woese

3. Which taxon is represented by the letter "X" in the diagram above? Give your answer as a single word with no period at the end.

• Class
• Phylum

• Kingdom

4. Which taxon is represented by the letter "Y" in the diagram above? Give your answer as a single word with no period at the end.

• Order
• Kingdom

• Class

• Phylum

5. There are three domains. What are the names of these? Select three answers.

• Eukarya
• Bacteria
• Archae
• Plantae
• Animalia

6. Why do scientists refer to organisms by their species name, rather than using the common name, e.g. "mountain lion"?

• It makes the organism sound more scientific
• It ensures that everyone knows which species is being referred to
• It is a legal requirement of journals and newspapers
• It displays how clever the scientist is

7. Which option shows the correct formatting of the species name of a mountain lion?

• A
• B
• C
• D

8. Which phylum does the red fox belong to? Give your answer as a single word with no period at the end.

9. Which genus does the red fox belong to? Type your answer as a single word with no period at the end.

10. Which species is the leaf?

• Carya illionoinensis
• Magnolia virginiana
• Aesculus californica
• Urtica dioica
• Ilex aquifolium