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MB Chapter 1-1
Chapter 1 Section 1 Terms
Term | Definition |
---|---|
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 | one celled organisms |
multicellular | multi celled organisms |
organ | structures that carry out specialized jobs within an organ system |
tissue | groups of cells that have similar abilities and that allow the organ to function |
organelle | tiny structures that carry out the functions necessary for the cell to stay alive |
biological molecule | the chemical compounds that provide physical and that bring about movement, energy use, and other cellular forms |
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 | he formation of two new cells from an existing cell |
development | the process by which an organism becomes a mature adult |
reproduction | the process of producing new organisms just like themselves |
gene | a short segment of DNA that contains the instructions for a single trait for an organism |