The World of Animals Review

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Across
  1. 5. Animals with scales, such as lizards and snakes. (p. 22–23)
  2. 6. Animals with hair or fur that feed milk to their young. (p. 26–27)
  3. 8. Animal group including clams, snails, and octopuses. (p. 12–13)
  4. 10. An early species from which others have descended. (p. 13, 20, 23)
  5. 12. Animals like frogs that live both in water and on land. (p. 20)
  6. 13. A scientist who studies animals. (p. 6–7)
  7. 15. Taxonomy level between phylum and order. (p. 8–9, 16, 20, 26)
  8. 17. Animal without a backbone. (p. 16–17)
  9. 20. Taxonomy level between order and genus. (p. 8–9)
Down
  1. 1. Taxonomy level between kingdom and class. (p. 8–12, 16, 20)
  2. 2. Phylum that includes animals with backbones. (p. 16–17)
  3. 3. Animal with a backbone. (p. 16)
  4. 4. The broadest level of taxonomy. (p. 7–9)
  5. 7. Animal with an exoskeleton and jointed legs. (p. 14–15)
  6. 9. The most specific level of classification. (p. 8–9, 13, 27)
  7. 11. Marine animals with spiny skin, like sea stars. (p. 11)
  8. 14. Taxonomy level between class and family. (p. 8–9, 20, 27)
  9. 16. Taxonomy level just above species. (p. 8–9)
  10. 18. The kingdom that includes all animals. (p. 8–9)
  11. 19. System of naming and classifying living things. (p. 6–9)