Across
- 2. physical traits of an organism
- 5. a change that allows an organism to survive better
- 6. different genes and traits found in a population
- 8. group of organism that can interbreed and have offspring
- 10. change over time
- 13. group of species living in an area at the same time
- 16. study of embryos
- 17. change in DNA
Down
- 1. genetic sequence of species
- 3. the organisms with the best traits will survive and reproduce
- 4. ability to survive and reproduce
- 7. body parts
- 9. preserved remains or imprints of ancient organisms
- 11. all genes in a breeding population
- 12. distribution of species around the world
- 14. one species evolves into two or more species
- 15. passing on of traits from parents to offspring