What is the sequence of taxa in the biological hierarchy (e.g. phylum, class, kingdom) from largest to smallest?

Domain ➔ kingdom ➔ phylum ➔ class ➔ order ➔ family ➔ genus ➔ species


A mnemonic that may help you remember this is 'Did King Philip Came Over For Good Soup'.

Answer in your head, out loud, or on paper, then tap the card to flip.

What is the binomial system of naming species?

Each species is identified by a two part name consisting of the genus and the species.


For example, Homo sapiens.

Answer in your head, out loud, or on paper, then tap the card to flip.

What are the five kingdoms used to classify organisms?

  1. Prokaryotae (prokaryotes)
  2. Protoctista (unicellular eukaryotes)
  3. Fungi (such as yeasts)
  4. Plantae (plants)
  5. Animalia (animals)

Answer in your head, out loud, or on paper, then tap the card to flip.

What are the three recognised domains of life?

  1. Archaea
  2. Bacteria
  3. Eukarya

Answer in your head, out loud, or on paper, then tap the card to flip.

What are the key physiological and structural differences between Archaea and Bacteria?

  1. Archaea membranes have unique membranes (containing fatty acids that are bound to glycerol by ether linkages)
  2. Archaea have a more complex form of RNA polymerase
  3. Only Bacteria have peptidogylcan (murein) in their cell walls
  4. The genes and protein synthesis in Archaea are more similar to Eukarya than Bacteria

Answer in your head, out loud, or on paper, then tap the card to flip.

What is the generally accepted definition of a species?

A species is a group of organisms that are able to breed to produce fertile living offspring.

Answer in your head, out loud, or on paper, then tap the card to flip.