Mrs. K's unit 1 vocab
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24 terms
Terms | Definitions |
|---|---|
 biology | the study of life |
| subatomic particles | parts of an atom |
| atoms | basic unit of matter that cannot be broken down by ordinary means |
| molecules | 2 or more atoms joined together with a covalent bond |
| organelles | organic molecules (cell parts) that carry out the life activities of a cell |
| cell | basic unit of life |
| tissues | a group of cells working together to perform a specific function |
| organs | a group of tissues working together to perform a specific function |
| organ system | a group of organs working together to perform a specific function |
| organism | any living thing made of at least one cell |
| reproduction | process in which offspring are produced |
| metabolism | sum of all chemical reactions carried out in an organism |
| energy | the ability to do work |
| homeostasis | process in which a constant internal environment is maintained |
| heredity | the passing of traits from parent to offspring |
| gene | basic unit of heredity |
| mutation | a change in the DNA of a gene |
| growth | procees in which an organism increases in size |
| development | process in which an organism matures |
| evolution | change in the inherited characteristics of a species over time or generations |
| species | a group of similar organisms that can reproduce fertile offspring |
| natural selection | theory that states that organisms with the most favorable traits will survive to reproduce |
| interdependence | all organisms interact with their environment and one another in that environment |
| ecology | study of the relationships between organisms and their environment |
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