Biology Chapter 1 Latest Update Already Graded A

Biology Chapter 1 Latest Update Already Graded A Biology The scietifice study of life. Seven properties associated with life order, reproduction, growth and development, energy processing, response to the environment, regulation, evloutionary adaption. Biosphere All of the environments on Earth that support life. Ecosystem An environment that consists of all the organisms living in a particular area, as well as the physcial components with which the organisms interact such as air, soil, water and sunlight. Community The entire array of organisms in an ecosystem. Population all the individuals of a particular species living in an area. Organism An individual living thing. Organ system such as circulatory system or nervous system, consists of several organs that cooperate in a specific function. Cell The fundamental unity of life. Organelle a membrane-enclosed structure that performs a specific function in a call. Molecule a cluster of small chemcial units called atoms held together by chemical bonds. Life's heirarchy of organization from largest to smallest. Biosphere ecosystem community population organism organ system organ tissue cell organelle molecule Prokaryotic cells A type of cell lacking a membrane-enclosed nucleus and other membrane-enclosed organelles; found only in the domains bacteria and archaea. Eukaryotic cells 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 The units of inherticane that tramsit information from parents to offspring. Three Domains of Life Bacteria, Archaea, Eurkarya. Evolution Descent with modification; the idea that living species are descendants of ancestral species that were different from presentday ones; also, the genetic changes in a population from generation to generation. Natural selection A process in which individuals with certain inherited traits are more likely to survive and reproduce than are individuals that do not have those traits. Inductive reasoning A type of logic in which generalizations are based on a large number of specific observations. Hypothesis A testable explanation for a set of observations based on the available data and guided by inductive reasoning. Deductive reasoning A type of logic in which specific results are predicted from a general premise. Theory A widely accepted explanatory idea that is broader in scope than a hypothesis, generates new hypotheses and is supported by a large body of evidence. Controlled experiment An experiment in which an experinemntal group is compared with a control group that varies only in the factor being tested. Emergent properties New properties that arise with eache step upward in the hierarchy of life, owing to the arragnements and interactions of parts as copmlexity increases.