Biology Vocabulary

4. animal that carries pathogens from person to person
9. a tiny cell structure that carries out a specific function within the cell
10. tiny one-celled organisms that lack a nucleus, some of which can cause diseases: come in three shapes (cocci, bacillus, and spirilia)
11. microscopic life form: microorganism: germ
13. chemicals that kill pests such as bugs or weeds
14. A community of organisms and their abiotic environment
15. an organism's particular role in an ecosystem, or how it makes its living
18. medicine that kills or slows the growth of bacteria
19. an organisms that lives on or in a host and causes it harm

1. chemicals that kill pests such as bugs or weeds
2. substance prepared from killed or weaken viruses and introduced into a body to produce immunity to the virus
3. the total quantity of crop that the land produces
5. a type of protein that is used in bodily functions
6. the science of classifying organisms
7. the form of sugar that circulates in the blood and provides the major source of energy for body tissues
8. term that describes an organisms that lives in water
12. kingdom composed of heterotrophs: many obtain energy and nutrients from dead organic matter
13. group of individuals of the same species that live in the same area
16. a eukaryotic organism that cannot be classified as an animal, plant, or fungus
17. Place where an organisms lives