click below
click below
Normal Size Small Size show me how
Chapter1 Section1
Honors Biology
Question | Answer |
---|---|
Biology | 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 | 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 | tiny structures that carry out functions necassary for the cell to stay alive |
Biological Molecule | the chemical compounds that provide physical structure and the bring about movement, energy use, and other cellular functions. |
Homeostasis | the maintenence 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 | the process of producing offspring |
Gene | a short segment of DNA that contaions the instructions for a certain trait |