| Question |
Answer |
| biology | the study of living things |
| organization | hierarchy-the combination of simple structures to produce more complex structures |
| cell | the basic unit of living things |
| unicellular | organisms such as bacteria are composed of one cell |
| multicellular | organisms such as humans are composed of many cells |
| organs | groups of tissues make these |
| tissues | groups of cells make these |
| organelle | a small, specialized unit inside a cell |
| biological molecules | RNA, DNA, proteins, carbohydrates, lipids |
| homeostasis | maintenance of constant and stable internal conditions |
| metabolism | the production of energy through the process of making and breaking down molecules |
| cell division | the multiplication of cells through processes such as mitosis |
| development | the process by which an organism becomes a mature adult |
| reproduction | when organisms make more of their own kind |
| gene | a short segment of DNA that contains instructions for the dvelopment of a single trait of an organism |
Ch.18 LTI-MA 509
