Biodiversity

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Across
  1. 3. Animal that is endothermic, feathered.
  2. 4. Egg-laying animals; primitive group of mammals.
  3. 5. Relationship between two or more organisms.
  4. 8. Animal that is ectothermic, has scales.
  5. 10. Technique to group animals.
  6. 13. Preserving the environment.
  7. 15. Gill-bearing animal; does not have limbs with digits (fingers).
  8. 16. 'Warm-blooded.' Internal heat regulation.
  9. 18. 'Cold-blooded.' External heat regulation.
  10. 19. Ability of ecosystem to remain the same.
Down
  1. 1. Animal with a backbone.
  2. 2. Animal that is ectothermic, undergoesa metamorphosis.
  3. 6. Organisms, their habitats, and processes within these areas.
  4. 7. Animal that does not have a backbone.
  5. 9. Describes the variety of life on earth.
  6. 11. Feature of to identify an organism.
  7. 12. Animal that is endothermic, has hair.
  8. 14. A living thing.
  9. 17. Mammal that carries young in their pouch.