| A | B |
|---|
| audible | heard or perceptible by ear |
| auditorium | a large room used for public performances or gatherings |
| auditor | someone who formally examines and verifies financial accounts |
| biome | a large group of ecosystems that share the same type of climax community |
| biology | the science that studies living things |
| reaction | a response to some treatment, situation, or stimulus |
| hyperactivity | uncontrollable motor behavior |
| activate | put in motion or move to act |
| incredible | beyond belief or understanding |
| credit | have trust in; trust in the truth or veracity of |
| chronicle | a record or narrative description of past events |
| chronology | a record of events in the order of their occurence |
| chronic | something that does not get better for a long time |
| activity | motion, action, liveliness, recreation |
| creed | any system of principles or beliefs |
| audition | a trial hearing for a performer |
| biopsy | examination of tissues or liquids from the living body to determine the existence or cause of a disease |
| credentials | evidence that a person is qualified to do something |
| audience | a group of people, spectators, or listeners at a performance |
| biography | an account of the series of events making up a person's life |
