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Chapter 1, Section 1

The World of Biology

QuestionAnswer
biology the study of life
the high degree of order within an organism's internal and external parts and its interactons with the living world organization
cell the smallest unit that can perform all life's processes
unicellular describes an organism that consists Of a single cell
multicellular describes a tissue, organ, or organism that is made of many cells
structures that carry out specialized jobs within an organ system organs
tissues groups of cells that have similar abilities and that allow the organ to function
tiny structures that carry out functions necessary for the cell to stay alive organelles
biological molecules the chemical compounds that provide physical structure and that bring about movement, energy use, and other cellular functions
the maintenance of a stable level of internal conditions even though environmental conditions are constantly changing homeostasis
the sum of all the chemical reactions that take in and transform energy and materials from the environment metabolism
cell division the formation of two new cells from an existing cell
developement the process by which an organism becomes a mature adult
reproduction the process of reproducing offspring
a short segment of DNA that contains the instructions for a single trait of an organism gene
Created by: blehrner
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