Across
- 3. an organism's ability to keep a constant internal environment
- 4. useful energy that is collected from renewable resources
- 6. the total greenhouse gas emissions caused by an individual, event, organization, service, or product
- 8. a complex network of cells and proteins that defends the body against infection
- 11. the tendency toward a relatively stable equilibrium between interdependent elements
- 12. a biological preparation that provides active acquired immunity to a particular infectious disease
- 14. the capability of multicellular organisms to resist harmful microorganisms
- 15. this system consists of physical barriers like your skin and the mucosal lining in your respiratory tract
- 17. a cell that helps the body fight infections and other diseases
- 18. occurs when our own immune system is responsible for protecting us from a pathogen
- 19. Immunity against infections that can cause serious illness is generally beneficial
- 20. something that has been emitted, released or discharged
Down
- 1. This system relies on antigens, which are specific substances found in foreign microbes
- 2. includes both global warming driven by human emissions of greenhouse gases and the resulting large-scale shifts in weather patterns
- 5. a gas that absorbs and emits radiant energy within the thermal infrared range
- 7. a long-term change in the average weather patterns that have come to define Earth's local, regional and global climates
- 9. occurs when we are protected from a pathogen by immunity gained from someone else
- 10. a fuel formed by anaerobic decomposition of buried dead organisms
- 13. a nonspecific resistance that destroys invaders in a generalized way without targeting specific individuals
- 16. immunity that does not require prior sensitization to an antigen