| A | B |
|---|
| antibiotic | a medicine that saves lives by destroying harmful bacteria |
| autobiography | writing written by a person about his or her own life |
| biography | writing about a person's life written by someone else |
| biologist | a person who studies living things |
| biology | the study of living things |
| biopsy | living tissue removal from the body for diagnostic examination |
| biosphere | the zone between the deep crust and the lower atmosphere on Earth |
| macrobiotic diet | natural food diet that is thought to help people live longer |
| neurobiology | the study of the nervous system of living things |
| symbiosis | how two different living organisms live to |
