Across
- 3. the intentional mating of two animals in an attempt to produce offspring with desirable characteristics
- 8. an organism that is infected with a pathogen and can spread it to other organisms but does not show any outward signs of the infection
- 12. a disorder of structure or function in a human, animal, or plant, especially one that produces specific signs or symptoms or that affects a specific location and is not simply a direct result of physical injury
- 13. single-celled organism that lack a nucleus; prokaryotes
- 14. a small, nonliving particle that invades and then reproduces inside a living cell
- 16. the manipulation of living things to make useful products
- 17. a random change to a gene that results in a new trait
- 21. an outbreak that spreads over a large area, or throughout the world
- 23. a set of moral principles
- 25. a technique that produces an organism that is an exact genetic copy of another
- 26. immunity in which antibodies are given to a person rather than produced within the person's own body
- 28. a type of energy derived from renewable plant and animal materials or organic matter
- 30. DNA manipulation of cells or organisms
Down
- 1. allows selected individual genes to be transferred from one organism to another and also between non-related species
- 2. an organism that transmits a disease
- 4. a type of disease caused by the presence of a living thing in the body
- 5. immunity that occurs when a person's own immune system produces antibodies in response to the presence of a pathogen
- 6. introduced microorganism that break down environmental pollutants, in order to clean up a polluted site
- 7. a microorganism that causes disease
- 9. an outbreak of a disease that affects many people in an area
- 10. a rod-shaped bacterium
- 11. an organism that lives on or in a host and causes harm to the host
- 15. a round or spherical shaped bacterium
- 18. an agent, like a drug, that is destructive to or prevents the growth of microorganism
- 19. a substance introduced into the body to stimulate the production of chemicals that destroy specific viruses, bacteria, or other disease-causing organisms
- 20. a bacterium that has a spiral shape
- 22. a chemical that can kill bacteria without harming a person's cells
- 24. a simple cell in the body that is able to develop into any one of various kinds of cells
- 27. the study of microscopic organisms
- 29. eukaryotic organisms that have cell walls, use spores to reproduce, and are heterotrophs that feed by absorbing food