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Chapter 1 Lesson 1
What Is Life
Organism | A living thing |
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Cell | The basic unit of structure and function in living things. |
Unicellular | Made of a single cell |
Multicellular | Consisting of many cells |
Response | An action or change in behavior that occurs as a result of a Stimulus |
Stimulus | Any change or signal in the environment that can make an organism react in some way |
Asexual Reproduction | A reproductive process that involves only one parent and produces offspring that are genetically identical to the parent |
Sexual Reproduction | A reproduction process that involves two parents that combine their genetic material to reproduce a new organism which differs from both parents |
Development | The process of change that occurs during an organism's life to produce a more complex organism |
Autotroph | An organism that is able to catch energy from sunlight or chemicals and use it to produce it's own food |
Controlled Experiment | An experiment in which only one variable is manipulated at a time |
Heterotroph | An organism that cannot make its own food and gets food by consuming other living things |
Homeostatis | The condition in which an organism's internal environment is kept stable in spite of changes in the external environment |
Metabolism | The combination of chemical reactions through which an organism builds up or breaks down materials |
Spontaneous Generation | The mistaken idea that living things arise from non-living things |
Organism | A living thing |