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Biology 1.2 and 1.3
| Term | Definition |
|---|---|
| Domain | In a modern taxonomic system, the broadest category; the category that contains kingdoms. |
| Kingdom | In a traditional taxonomic system, the highest taxation category , which contains a group of similar phyla. |
| Ecology | The study of the interactions between organisms and the other living and nonliving components of their environment. |
| Ecosystem | A community of organisms and their abiotic environment. |
| Evolution | A heritable change in the characteristics within a population from one generation to the next; the development of new types of organisms from preexisting types of organisms over time. |
| Natural Selection | The process by which individuals that are better adapted to their environment survive and reproduce successfully than less well adapted individuals do; a theory to explain the mechanism of evolution. |
| Adaptation | The process of becoming adapted to an environment; and anatomical, physical, physiology, or behavioral trait that improves an organism's ability to survive and reproduce. |
| Scientific Method | The series of steps followed to solve problems, including collecting data, formulating hypothesis, and stating conclusions. |
| Observation | The process of obtaining information by using the senses; the information obtained by using the senses. |
| Hypothesis | In science, an idea or explanation that is based on observations and that can be tested. |
| Prediction | A statement that is made in advance that express the results that will be obtained from testing a hypothesis if the hypothesis is supported; the expected outcome if a hypothesis is accurate. |
| Experiment | A procedure that is carried out under controlled conditions to discover, demonstrate, or test a fact, theory, or general truth. |
| Control Group | In an experiment, a group that serves as a standard of comparison with another group which the control group is identical. |
| Experimental Group | In an experiment, a group that is identical to a control group except for one factor and that is compared with the control group. |
| Independent Variable | In an experiment, the factor that is deliberately manipulated, also called the MANIPULATED VARIABLE. |
| Dependent Variable | In an experiment, the factor that changes as a result of manipulation of one or more other factors; also called a RESPONDING VARIABLE. |
| Theory | An expansion for some phenomenon that is based on observation, experimentation, and reasoning; that is supported by large quantity of evidence; and that does not conflict with any existing experimental results or observations. |
| Peer Review | The process in which experts in a given field examine the results and conclusions of a scientist's study before that study is accepted for publication. |