autobiography	an account of a person's life written by that person
biodegradable	capable of being broken down by living microorganisms and absorbed by the environment
biofeedback	a technique for consciously regulating a bodily (life) function thought to be involuntary
biography	a written account of someone's life.
biology	the study of plant and animal life
biopsy	the examination of tissues removed from the living body
biosphere	the part of Earth in which living things exists
symbiosis	the living together in close union of two dissimilar organisms, often to their mutual benefit
symbiotic	living together in a close relationship, often to the benefit of both
biochemistry	the scientific study of the chemistry of living things
bionic	using artificial materials and methods to produce activity or movement in a person or animal:
microbe	a very small living thing, especially one that causes disease, that can only be seen with a microsco