Life Science Semester 2 Review

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Across
  1. 3. the type of fossil that is formed when an organism is pressed into soft ground
  2. 5. a chart of a family tree that tracks a trait
  3. 8. sections of DNA that are passed on from parent to offspring
  4. 10. the process in nature through which species adapt to their environment
  5. 11. different species living together
  6. 12. a physical characteristic of an organism
  7. 14. multiple organisms competing for one resource
  8. 15. nonliving things
  9. 17. the type of gene that always shows
  10. 18. each level in a food web
Down
  1. 1. the type of fossil that is formed when each part is replaced by minerals over time
  2. 2. describes an organism that is harming its non-native ecosystem
  3. 4. an inherited trait that helps an organism survive and reproduce
  4. 6. the study of genes
  5. 7. both species benefit
  6. 9. the weather conditions of an ecosystem over time
  7. 13. the number of copies of each gene humans have
  8. 16. the taxonomy level between class and family