Across
- 2. a specific gene that produces a recognizable trait and can be used in family or population studies
- 5. a change or alteration in form or qualities
- 6. having the same relation, relative position, or structure
- 7. the man who formed the theory of evolution
- 10. random change in allele frequencies over time
- 11. the ability of an organism to survive and reproduce in its own environment
- 13. preserved remains of organisms from geological age
- 14. noticeable variety
- 18. a negative interaction between two organisms
- 19. a process in which organisms evolve to adapt to environment
- 20. a trait that helps a population survive
Down
- 1. two organisms make an offspring
- 3. all the inhabitants of a particular area
- 4. the evolution of a biological species
- 8. the dying out of a species
- 9. group of genetically related organisms in a line of descent
- 12. the process in which living organisms change overtime in the genome
- 15. occurring among members of a family usually by heredity
- 16. any difference between individuals of the same species
- 17. an organ or body part that has become functionless during the course of evolution