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Chapter1.1

Vocabulary

TermDefinition
biology The study of life
organization the high degree of order within an organism's internal and external parts in its interactions with the living world.
cell The smallest unit that can perform all the life's processes.
unicellular Organisms that are made up of one cell.
multicellular Organism's that are made up of multiple cells.
organ Structures that carry out specialized jobs within the organ system.
tissue Groups of cells that have similar abilities and that allow the organ to function.
organelle Tiny structures that carry out functions necessary for the cell to stay alive.
biological molecule Chemical compounds that provide physical structure and that bring about movement, energy use, and other cellular functions.
homeostasis The maintenance of a stable level of internal conditions even though environmental conditions are constantly changing.
metabolism The sum of all the chemical reactions that take in and transform energy and materials from the environment.
cell division The formation of two cells from an existing cell.
development The process by which an organism becomes a mature adult.
reproduction When organisms produce new organisms like themselves.
gene A short segment of DNA that contains the instructions for a single trait of an organism.
Created by: FarlowA20
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