Across
- 1. a type of asexual reproduction mostly found in prokaryotes
- 5. differences between closely related species
- 6. type of adaptation that makes it more fit for its environment
- 9. disappearance of a species on earth
- 12. formation of embryo and fetus
- 15. when two species affect their evolution patterns through natural selection
- 16. chromosomes that share the same structural pattern
- 18. reproducing sexually
- 19. survival of the
Down
- 2. the way organisms adapt to an environment over time
- 3. reproducing asexually
- 4. a way to determine if specific traits evolve well
- 7. organisms that lack a nucleus
- 8. traits that are similar due to reasons other than relatedness
- 10. sequence of nucleotides at a particular location
- 11. process of viruses growing inside cells
- 13. a sharp reduction in population size due to a natural disaster
- 14. organisms that have a full nucleus
- 17. similar analogous structures that were not present in ancestry