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bio vocab ch.1
vocab
| Question | Answer |
|---|---|
| biosphere | consists of all the environments on earth that support life |
| ecosystem | consists of all the organisms living in a particular area (as well as not living components) |
| community | entire array of organisms inhabiting a particular ecosystem |
| population | consists of all individuals of a species living in a specified area |
| organism | below the population level in the hierarchy. An individual living thing (bacteria, animal, plant, fungi etc.) |
| organ system | consists of several organs that work together in performing specific functions |
| organs | a structure consisting of several tissues adapted as a group to perform a specific function . (made up of group of similar cells) |
| tissue | integrated group of cells with a common function, structure, or both. |
| cell | a basic unit of living matter separated from its environment by a plasma membrane; fundamental structure unit of life |
| organelle | a membrane-bound structure that performs a specific function in a cell |
| molecule | a cluster of atoms held together by a chemical bond |
| producers | (plants and other photosynthetic organisms) produce and prove the food for a typical ecosystem |
| consumers | in the ecosystem eat plants and other animals |
| decomposers | animals in the soil that decompose wastes and clers, changing complex matter into simpler minerals nutrients that plants can use |
| system biology | cutting edge of large-scale research today (an approach) |
| prokaryotic cell | a type of cell lacking a membrane -enclosed nucleus and other membrane-enclosed organelles; found only in the domains Bacteria and Archaea (is much simpler and usually much smaller than a eukaryotic cell.) |
| eukaryotic cell | type of cell that has a membrane- enclosed nucleus and other membrane-enclosed organelles (subdivided by internal membranes into many different functional compartments , or organelles, including the nucleus that houses the cell's DNA) |
| species | a group whose members posses similar anatomical characteristics and have the ability to interbreed and produce viable, fertile offspring |
| domain | a taxonomic category above the kingdom level (3 domains are Archaea, ,Bacteria, and Eukarya) |
| bacteria | one of two prokaryotic domains of life, other being Bacteria |
| archaea | one of two prokaryotic domains of life the other being bacteria (no nucleus) |
| Eukarya | the domain that includes all eukaryotic organisms (have nucleus) |
| evolution | descents 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 |
| individuals variation | individuals in a population vary in many heritable traits |
| over production of offspring | a population of any species has the potential to produce far more offspring than will survive to produce offspring of their own |
| 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 body of evidence |
| controlled experiment | a component of the process of science where by a scientist carries out two parallel tests, an experimental test and a control test. (the tests differ by the variable) |
| technology | the practical application of scientific knowledge |
Created by:
sstollman
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