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Biology Chapter 1.1

Biology Chapter 1

TermDefinition
Biology The study of life.
Organization The high degree of order within an organisms internal and external parts and in its interactions with the living world.
Cell In biology, the smallest unit that can perform all life processes; cells are covered by a membrane and contain DNA and cytoplasm.
Unicellular Describes an organism that consists of a single cell.
Multicellular Describes a tissue, organ, or organism that is made of many cells.
Organ A collection of tissues that carry out a specialized function of the body.
Tissue A collection of specialized cells and cell products that perform a specific function.
Organelle One of the small bodies that are found in the cytoplasm of a cell and that are specialized to perform a specific function.
Biological Molecule Chemical compound that provides physical structure and brings about movement, energy use, and other cellular functions.
Homeostasis The steady-state physiological condition of the body.
Metabolism The sum of all chemical processes that occur in an organism.
Cell Division The formation of two cells from one existing cell
Development The gene-directed process by which an organism matures.
Reproduction The process of producing offspring.
Gene A short segment of DNA that contains the instructions for a single trait.
Created by: DragonT20