Living things

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Across
  1. 4. the scientific process of sorting living things into groups
  2. 5. organism with an exoskeleton or no skeleton
  3. 7. a type of key where each arm of the key contains two choices
  4. 8. the building block of living things
  5. 10. may have more of these in your body than human cells
  6. 12. the organisms in this kingdom include mushrooms, yeasts and mould
  7. 13. visual tool used to classify organisms
Down
  1. 1. frogs are part of this group
  2. 2. have an internal skeleton
  3. 3. first part of the binomial name
  4. 6. the term for an external skeleton
  5. 8. group or organise
  6. 9. snakes and lizards are in this group
  7. 11. multicellular organisms have more than ___________ cell