Across
- 3. prescription medication that treats infection by killing bacteria or preventing its reproduction
- 4. a trait that helps a living organism survive and reproduce in its environment
- 7. programmed cell death caused by killer T cells
- 10. organisms better adapted to their environment are more likely to survive and reproduce causing these beneficial traits to become more common
- 12. part of the nonspecific immune response, destroys any pathogen by engulfing
- 13. protective barrier between your body and the outside world
- 14. type of reproduction that requires two parents, offspring receive 50% of their genetic information from each parent
- 17. remember the pathogen and the shape of the antibodies needed to restrain it preventing you from getting sick again
- 18. proteins with specific shapes on the surface of pathogens
Down
- 1. state of being resistant to a particular pathogen
- 2. differences in traits among individuals in a population
- 5. helps you build immunity by exposing you to a weakened form of the pathogen
- 6. gradual change in characteristics of a population over time
- 7. reactions caused by your immune system reacting to harmless substances like pollen
- 8. microorganisms like viruses, bacteria, fungi, and parasites that cause disease
- 9. white blood cells that produce antibodies
- 11. proteins that identify and restrain pathogens
- 12. a random change in the DNA sequence
- 15. type of reproduction that requires one parent creating genetically identical offspring
- 16. passed on from parent to offspring