Chapter 3 The Environment and Change Over Time

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Across
  1. 4. An inherited trait that increases an organism's chance of surviving and reproducing in its environment
  2. 5. The study of similarities and differences among the structures of living species
  3. 6. Body parts of organisms that are similar in structure and position but different function
  4. 11. The breeding of organisms for desired characteristics
  5. 12. Body parts that have lost their original function through evolution
  6. 13. The science of the development of embryos from fertilization
  7. 14. The impression of an organism in a rock
Down
  1. 1. A person who studies plants and animals by observing them
  2. 2. Body parts that perform a similar function but differ in structure
  3. 3. An adaption that enables a species to blend in with its environment
  4. 5. A fossil copy of an organism in a rock
  5. 7. The resemblance of one species to another species
  6. 8. Made up of all the fossils ever discovered on Earth
  7. 9. Occurs when the last individual organism of a species dies
  8. 10. A slight difference in an inherited trait of individual members of species