Across
- 2. structures that have different composition, but have a similar function
- 5. a structure that no longer serves a purpose in an organism due to evolution
- 7. physical expression, what's on the outside
- 8. process where organisms that are better suited to the environment will survive and reproduce
- 9. genetic expression, what's on the inside
- 11. the most specific level of classification
- 16. structures with similar structures but different functions
- 18. ability of an organism to survive and reproduce in its environment
- 20. inherited characteristics that increase an organism's chance of survival
Down
- 1. comparing similarities and differences of anatomy of different species
- 3. formation of a new species
- 4. differences among individuals of a species
- 6. the founder of the theory of evolution
- 10. well tested explanation that unifies lots of observations
- 12. sorting organisms into categories based on their physical and genetic characteristics
- 13. change in an organism over time, process where modern organisms descended from ancient organisms
- 14. preserved remains or evidence of an ancient organism
- 15. a change in the sequence of DNA
- 17. study of embryos
- 19. the broadest level of classification