Dichotomous keys

Read the picture, follow the key.

Exactly what the test asks: look at an organism, start at step 1, pick the statement that matches what you can see, follow the number. Every organism you identify is remembered.

Vertebrates of a river red gum forest · Murray River, NSW. Pick an organism to identify.

The full key, as it would be printed in the test
  1. 1aBody covered in feathers …… Laughing kookaburra1bBody not covered in feathers …… go to 2
  2. 2aBody covered in fur …… go to 32bBody not covered in fur …… go to 4
  3. 3aHas a duck-like bill and lays eggs …… Platypus3bGives birth to live young carried in a pouch …… Red kangaroo
  4. 4aSkin is dry and scaly …… Blue-tongue lizard4bSkin is moist, or body has fins …… go to 5
  5. 5aHas fins and lives in water all its life …… Murray cod5bHas legs and moist skin …… Green tree frog