science

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Across
  1. 2. skeleton or shell that lies outside the body
  2. 3. mammal animals with pouches
  3. 4. animals with a backbone
  4. 6. key diagrams used to classify things by grouping them into smaller groups.
  5. 9. animal that has a Exoskeleton with joined legs
  6. 11. an animal that maintains its body temperature
  7. 12. mammal animals with a placenta
Down
  1. 1. animals without a backbone
  2. 5. a cold blooded animal
  3. 7. producers milk
  4. 8. mammal animals that lay eggs
  5. 10. nomenclature Naming a species with two parts