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Diversity of Life Textbook: Chapter 1 Introduction to Living Things (not including Lesson 4 vocabulary!!!!)


a living thing


the basic unit of structure and function in living things


an organism made of one cell


an organism consisting of many cells


the combination of chemical reactions through which an organism builds up or breaks down materials


any change or signal in the environment that can make an organism react in some way


an action or change in behavior that occurs as a result of a stimulus


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 produces offspring that are genetically identical to the parent

sexual reproduction

a reproductive process that involves two parents that combine their genetic material to produce a new organism which differs from both parents

spontaneous generation

the mistaken idea that living things arise from nonliving sources

controlled experiment

an experiment in which only one variable is manipulated at a time


an organism that is able to capture energy from sunlight or chemicals and use it to produce its own food


an organism that cannot make its own food and gets food by consuming other living things


the condition in which an organism's internal environment is kept stable in spite of changes in the external environment


the process of grouping things based on their similarities


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 indicating its genus and species


a classification grouping that consists of a number of similar, closely related species


a group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce


a unicellular organism that lacks a nucleus and some other cell structures


in cells, a large oval organelle that contains the cell's genetic material in the form of DNA and controls many of the cell's activities


an organism whose cells contain a nucleus

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