Across
- 2. The most ¨fit¨ animal survives
- 7. All the genes in a population
- 9. Bird and Butterfly have wings because of environment
- 11. Body parts that serve no purpose
- 12. Migration
- 14. Study of extinct animal remains
- 17. Study of embryos
- 21. Organism changing overtime
- 22. Two organisms evolve off each other
- 23. Organism slowly evolves
- 24. Trait that is possessed to increase survival
- 25. Random gene changes
- 26. Catastrophic event occurs
- 27. Mate picked because of trait that may not be best for survival
Down
- 1. Common ancestor that leads to common traits
- 3. Using DNA and Amino acids
- 4. Random sudden change then equals out and doesn't change
- 5. Mammals that can mate and evolve together
- 6. Two organisms evolve in similar ways
- 8. Group of organisms within a location
- 10. Formation of new species of preexisting species
- 13. Structures in animals that share same basic form
- 15. Extinction over a long period of time
- 16. Species changing overtime due to natural selection or random chance
- 18. Remnants of extinct animals
- 19. Study of body parts
- 20. Location of plants and animals