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Bio Chapter 1.1

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QuestionAnswer
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 of life's processes.
unicellular are made up of one cell
multicellular made up of multiple cells.
organs structures that carry out specialized jobs within an organ system, made up of tissues
tissues 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. contain biological molecules
biological molecules the chemical compounds that provide physical structure and that bring about movement, energy use, and other cellular functions. made up of atoms
atoms the simplest particle of an element that retains all the properties of a certain element
stimlus a physical or chemical change in the internal or external environment that organisms can respond to
homeostasis the maintenance of a stable level of internal conditions even though environmental conditions are constantly changing.
metabolism is 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. involves cell division and cell differentiation or specialization
reproduction not essential to the survival of an individual organism, but since no organism lives forever, reproduction is essential for the continuation of a species
gene a short segment of DNA contains the instructions for a single trait of an organism
Created by: asb102296
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