Classification

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Across
  1. 2. vertebrates that have fur or hair and drink milk when they are young
  2. 3. any living thing
  3. 5. animals that have a backbone
  4. 9. sorting living things into groups based on their similarities and differences
  5. 10. animals that do not have a backbone
Down
  1. 1. a feature of a living thing, such as having fur
  2. 4. vertebrates that can live in water and on land
  3. 6. vertebrates that have dry, scaly skin
  4. 7. vertebrates that live in water and have fins and scales
  5. 8. vertebrates that have feathers and lay eggs