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Ch.1 Vocab Science
| Question | Answer |
|---|---|
| Biosphere | all organisms and the part of Earth where they exist |
| Biodiversity | variety of life in an area |
| Species | group of organisms so similar to one another that they can breed and produce fertile offspring |
| Biology | scientific study of all forms of life |
| Organism | any individual living thing |
| Cell | basic unit of life |
| Metabolism | all chemical processes that synthesize or break down materials within an organism |
| DNA | molecule that stores genetic information in all organisms |
| System | changing, organized group of related parts that interact to form a whole |
| Ecosystem | a collection of organisms and nonliving things, such as climate, soil, water, and rocks in an area |
| Homeostasis | regulation and maintenance of constant internal conditions in an organism |
| Evolution | change in a species over time; process of biological change by which descendants come to differ from their ancestors |
| Adaptation | inherited trait that is selected for over time because it allows organisms to better survive in their environment |
| Observation | using the senses to study the world; using tools to collect measurements; examining previous research results |
| Data | observations and measurements recorded during an experiment |
| Hypothesis | proposed explanation or answer to a scientific question |
| Experiment | process that tests a hypothesis by collecting information under controlled conditions |
| Independent Variable | condition or factor that is manipulated by a scientist during an experiment |
| Dependent Variable | experimental data collected through observation and measurement |
| Constant | condition that is controlled so that it doesn't change during an experiment |
| Theory | proposed explanation for a wide variety of observations and experimental results |
| Microscope | tool that provides an enlarged image of an object |
| Gene | specific region of DNA that codes for a particular protein |
| Molecular genetics | study of DNA structure and function on the molecular level |
| Genomics | study and comparison of genomes within a single species or among different species |
| Biotechnology | use and application of living things and biological processes |
| Transgenic | organism whose genome has been altered to contain one or more genes from another organism or species |