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Chapter 1 Bio Words

Chapter 1 Vocabulary words for Biology SPX

TermDefinition
Biology The study of life
Organization the high degree of order within an organism's internal and external parts in it's 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 more than one cell
organ a structure that carries out specialized jobs within an organ system
tissue a group of cells that have similar abilities that allow the organ to function
organelle a tiny structure that carries out functions necessary for the cell to stay alive
biological molecules the 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 new cells from an existing cell
development the process by which an organism becomes a mature adult
reproduction when an organism produces new organisms like themselves
gene a short segment of DNA that contains the instructions for a single trait of an organism
Domain the major subdivisions of all organisms
Kingdoms this system of grouping organisms divides all life into six major categories
Ecology the branch of biology that studies organisms interacting with each other and with the environment
Ecosystem community of living species and their physical environment
Evolution the process in which the inherited characteristics within a population change over generations
Natural Selection the ability of populations of organisms to change over time
adaptation traits that improve an individuals ability ot survive
Created by: deeutecht
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