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Ch1 Lesson 1-3

organism A living thing
cell The basic unit of structure that releases energy by breaking
unicellular Made of a single cell
multicellular Consisting of many cells.
metabolism The combination of chemical reactions through which an organism builds up or breaks down materials.
stimulus Any change or signal in the environment that can make an organism react in some way.
response An action or change in behavior that occurs as a result of a stimulus
developement The process of change that occurs during an organism's life to produce a more complex organism.
asexual reproduction A reproductive process that involves only one parent and produce offspring that are genetically identical to the parent
sexual reproduction A reproduce process that involves two parents that combine their genetics
spontaneous generation The mistaken idea that living things arise from the nonliving sources
controlled experiment An experiment in which only one variable is manipulated at a time.
autotroph An organism that is able to capture energy from sunlight or chemicals and use it to produce its own food.
heterotroph An organism that cannot make its own food and gets food by consuming other living things.
homeostasis The condition in which an organism's internal environment is kept stable in spite of changes in the external environment.
classification The process of grouping things based on their similarities
taxonomy The scientific study of how living things are classified.
binomial nomenclature The classification system in which each organism is given a unique, two part scientific name indication its genus and species.
genus A classification grouping that consists of a number of similar, closely related species
species A group of similar organisms that can make with each other and produce offspring that can also mate and reproduce
prokaryote A unicellular organism that lacks a nucleus and some other cell structures.
nucleus In cells, large oval organelle that contains the cell's genetic material in the form of DNA and controls many of the cell's activities.
eukaryote An organism whose cells contain a nucleus
Created by: mvu047
 

 



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