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Chapter 1 Biology
Chapter 1 biology words
| Term | Definition |
|---|---|
| Biology | The study of Life |
| Cytology | Study of Cells |
| Botany | Study of Plants |
| Ethics | Moral and Principles |
| Organization | |
| Cell | Smallest unit that can perform life's processes |
| Unicellular | Organisms that are made up of 1 cell such as bacteria |
| Multicellular | Organisms made up of multiple cells such as humans or trees |
| Organ | Structures that carry out specialized jobs within an organ system |
| Tissue | Groups of cells that have similar abilities that allow the organ to function |
| Organelle | Tiny structures that carry out functions necessary for the cell to live |
| Biological Molecule | Chemical compounds that provide physical structure and that bring about movement, energy use, and other cellular functions |
| Homeostasis | Constant internal condition |
| Metabolism | Eat food to get energy |
| Cell Division | Formation of two new cells from one existing cell |
| Development | Organism becomes a mature adult |
| Reproduction | Making more of themselves, essential for continuation of species |
| Gene | Short segment of DNA that contains instructions for a single trait of an organism |
| Domain | The three major subdivisions of all organisms |
| Kingdom | Another system of grouping organisms divides all life into six major categories |
| Ecology | Branch of biology that studies organisms interacting with each other and the enviroment |
| Ecosystem | Communities of living species and their physical enviroments |
| Evolution | Change over time |
| Natural Selection | Organisms that have certain favorable traits that help them survive and reproduce |
| Adaption | Help organisms ability to reproduce and survive |
| Scientific Method | To learn how the natural world works |
| Observation | Perceiving a natural occurrence that causes someone to pose a question |
| Hypothesis | Educated guess |
| Prediction | Statement that forecasts what would happen in a test situation if the hypothesis were true |
| Experiment | Used to test a hypothesis and it's predictions |
| Control Group | Provides a normal standard against which the biologist can compare result of the experimental group |
| Experimental Group | Identical to the control group except one factor, the independent variable |
| Independent Variable | What is being manipulated |
| Dependent Variable | Scientist observes or measures this variable, also called the responding variable |
| Theory | When a set of related hypothesis is confirmed to be true many times, and it can explain a great amount of data, scientists often reclassify as a theory |
| Peer Review | Scientists who are experts in the field anonymously critique and read that research paper |