Across
- 3. independent evolution of similar features in species of different periods
- 4. a quick extinction of a species from a catastrophic event
- 6. the study of the structure of the body
- 8. the study of amino acids and DNA that connects species
- 9. idea of species changing over time
- 11. Study of where species live
- 13. a group of species in an area
- 20. a trait that increases a species fitness
- 24. the formation of new and distinct species in the course of evolution
- 25. traits that give a species no advantage and they don’t use
- 26. when species have similar structures but different uses
- 27. a random change in the genes of a species
- 28. when a species changes over a period of time
Down
- 1. random bursts of change in evolution
- 2. when two species evolve reflecting off of the other species
- 5. the study of pre historic species
- 7. migration of genes from one area to another
- 10. same structures same uses
- 12. the extinction of a species at a gradual rate
- 14. an evolution of a species at a gradual rate
- 15. when traits are passed down because they give a species fitness
- 16. when a female reproduces with a male over their visible traits
- 17. the process where groups front the same ancestors evolve into different species
- 18. when a group within a species seperate from other members of its species
- 19. the study of a species in their development stages
- 21. the remains of prehistoric species
- 22. the genes present in an area
- 23. a group of organisms that can reproduce with eachother and produce fertile offspring