Across
- 3. A single-cell organism whose cell lacks mitochondria
- 6. the study of the embryo and its development
- 7. when a new colony is started by members of the original population
- 9. When a male gamete and a female gamete are involved in reproduction
- 10. Any cell or organism that possesses a clearly defined nucleus
- 12. Single celled organism
- 15. A genetic sequence on a specific chromosome
- 16. competition for access to mates
- 17. A change in allele frequencies in a population
- 18. The way a new species is created
- 19. changes in the genetic material of a population over time
Down
- 1. Offspring is produced by only one parent
- 2. the process of one cell dividing into two
- 4. the influence of closely related species on each other in evolution
- 5. The increased reproduction of organisms with genes that improve survival
- 8. The variation of of traits in a population
- 11. an infectious microbe
- 13. the complete disappearance of a species
- 14. the movement of genetic material to a population
- 15. An adjustment to the environment to survive