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Living Things
Lesson 1+2+3
| Term | Definition |
|---|---|
| Organism | A living thing. |
| Cell | The basic unit of structure and function in living things. |
| Unicelluar | Made of a single cell. |
| Multicellular | Consisting of many cells. |
| 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. |
| Development | 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. |
| 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 from consuming other living things. |
| Homeostasis | The condition in which ad organism's internal environment is kept stable in spite of changes in the external environment. |
| Classification | The process of grouping things based on their similarties. |
| 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 indicating its genius and species. |
| Prokaryote | A unicellular organism that lacks a nucleus and some other cell structures. |
| Nucleus | 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. |
| Eukaryote | An organism whose cells contain a nucleus. |
| Species | A group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce. |
| Metabolism | The combination of chemical reactions through which and organism builds up or breaks down materials. |
| Genus | A classification grouping that consists of, a number of similar, closely related species. |
Created by:
ebutterfield005
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