| A | B |
| antibiotic | chemical substances that kill or slow the growth of bacteria |
| asexual reproduction | reproducing a living thing from one parent |
| bacteria | very small, one celled moneran |
| biotechnology | use of living things to solve problems |
| blue-green bacteria | small, one celled monerans, that contain chlorophyll and make their own food. |
| capsule | sticky outer layer of the bacteria |
| colony | group of organisms that live close to one another but do not depend on the other organisms to live |
| communicable disease | diseases that can be passed from one organism to another |
| decomposer | living things that get their food from breaking down dead matter into simpler substances |
| endospore | thick-walled structure that forms inside the bacteria cell so the bacteria can survive harsh conditions |
| fission | process of one organism dividing into two organisms |
| flagellum | whiplike thread that helps to move some bacteria |
| host | organism that provides food for the parasite |
| interferon | a chemical substance that interferes with the reproduction of a virus |
| Koch's Postulates | steps that prove that a certain disease is caused by a certain microscopic organism |
| parasite | an organism that lives in or on another living thing |
| pasteurization | The process of heating milk to kill harmful bacteria |
| saprophyte | organisms that use dead material for food |
| vaccine | substance made from weakened or dead viruses used to treat some viral or bacterial diseases |
| virus | made of a chromosome-like part and a protein coat; can cuase disease |