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Chp. 1 Section 1

Section 1 Terms

TermDefinition
biology the study of life
organization the high degree of order within an organism's internal and external parts and in its interactions with the living world
cell the smallest unit that can perform all life's processes
unicellular organisms made up of one cell
multicellular organisms made up of multiple cells
organ structures that carry out specialized jobs within an organ system
tissue groups of cells that have similar abilities and that allow the organ to function
organelles tiny structures that carry out functions necessary for the cell to stay alive
biological molecules chemical compounds that provide physical structure and that bring about movement
homeostasis the maintenance of a stable level of internal conditions even though environmental conditions are constantly changing
metabolisms the sum of all the chemical reactions that take in and transform energy and materials from the environment.
cell division the formation of two new cells from an existing cell
development the process by which an organism becomes a mature adult
reproduction when organisms produce new organisms that are like themselves
gene a short segment of DNA that contains the instructions for a single trait of an organism
Created by: clairewoodard1
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