Environmental Science Lesson 9 act. B

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Across
  1. 1. A sequence of DNA that codes a particular trait.
  2. 5. a change in the structure of a gene.
  3. 6. The ability to survive and reproduce under changing environmental conditions.
  4. 7. an organism's ability to survive and reproduce in a particular environment.
  5. 9. the preying of one animal on others.
  6. 11. a change or the process of change by which an organism or species becomes better suited to its environment.
Down
  1. 2. the fact or process of a species, family, or other group of animals or plants becoming extinct.
  2. 3. symbiosis that is beneficial to both organisms involved.
  3. 4. a position or role taken by a particular kind of organism within its community.
  4. 5. The movement from one place to another.
  5. 8. the influence of closely associated species on each other in their evolution.
  6. 10. the formation of new and distinct species in the course of evolution.