click below
click below
Normal Size Small Size show me how
Bio vocab ch. 1
all vocab from chapter 1
| Question | Answer |
|---|---|
| biosphere | environments on earth that support life (land, water, low atmosphere) |
| ecosystem | organisms living in a particular area (as well as nonliving) |
| community | organisms inhabiting a particular ecosystem |
| population | individual of a specific spices living in a specific area |
| organism | individual living thing |
| organ system | several organs that work together |
| organs | (brain) |
| tissues | specific function made up of similar cells |
| cells | separated from environment by boundary called membrane |
| organelle | membrane-bound structure performs specific function in cell. |
| molecule | cluster of atoms held together by chemical bonds |
| emergent properties | the whole result from the specific arrangement and interactions of the component part |
| producers | provide food for typical ecosystems |
| consumers | eat plants and other animals |
| systems biology | aims to model dynamic behavior of whole biological systems |
| prokaryotic cell | a type of cell lacking a membrane-enclosed nucleus and other membrane-enclosed organelles; found only in the domains Bacteria and Archaea |
| eukaryotic cell | a type of cell that has a membrane-enclosed nucleus and other membrane-enclosed organelles. All organisms except bacteria and archaea are composed of eukaryotic cells. |
| genes | units of inheritance that transmit information from parents to offspring |
| species | term used for particular type of organism |
| domain | A taxonomic category above the kingdom level. The three domains of life are Archaea, Bacteria, and Eukarya |
| emergent properties | New properties that emerge with each step upward in the hierarchy of life, owing to the arrangement and interactions of parts as complexity increases. |
| evolution | Decent with modification; the idea that living species are descendants of ancestral species that were different from present-day ones; also the genetic changes in a population over generations. |
| natural selection | A process in which organisms with certain inherited characteristics are more likely to survive and reproduce than are organisms with other characteristics. |
| hypothesis | A tentative explanation a scientist proposes for a specific phenomenon that has been observed. |
| theory | A widely accepted explanatory idea that is broad in scope and supported by a large body of evidence. |
| controlled experiment | A component of the process of science whereby a scientist carries out two parallel tests, and experimental test and a control test, The experimental test differs from the control by one factor, the variable. |
| technology | The practical application of scientific knowledge. |