Biology Kingdom Animalia CH. 16

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Across
  1. 4. How most animals reproduce
  2. 6. Animals without a spine
  3. 8. Germ layer with muscles & circulatory system
  4. 9. Type of symmetry in most animals with 3 germ layers
  5. 10. concentration of sensory nerves and cells
  6. 13. Fertilization that occurs within the body
  7. 14. Germ layer with outer layers & coverings
  8. 15. Germ layer with digestive tract
Down
  1. 1. Animals that receive heat from outside sources
  2. 2. Fertilization that occurs outside the body
  3. 3. Animals with a spine, also known as Chordate
  4. 5. How animals respond to environmental changes
  5. 7. How animals are classified or grouped together
  6. 11. God-given knowledge animals have without being taught
  7. 12. Animals that make heat through their metabolism