Across
- 5. When bacteria have mutations that make them immune to an antibiotic, they can gain antibiotic __________.
- 10. A branching tree diagram that shows how organisms are related to each other through evolution.
- 12. ___________ structures have different functions but the same structure.
- 14. Also called selective breeding, _________ selection occurs when humans cause changes in populations of organisms
- 15. Drugs that can kill bacteria.
Down
- 1. ___________ structures have different structures but the same function.
- 2. These let the body develop an immunity to a virus.
- 3. The process by which species change over time
- 4. __________ isolation occurs when physical barriers separate one population into two populations, often causing speciation
- 6. The formation of new species over many generations
- 7. _______ selection can also be called survival of the fittest
- 8. Parts of an organism that were adaptive for an ancestor, but has atrophied or degenerated as it lost its original function.
- 9. Individuals who can mate and produce vital, fertile offspring with each other
- 11. A blood protein produced in response to and counteracting a specific antigen
- 13. Genetic _____ is the change in gene frequency caused by chance. This affects small populations more.