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Bio vocab ch. 1

all vocab from chapter 1

QuestionAnswer
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.
Created by: desantise
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