Cells Ch 1-1
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17 terms
Terms | Definitions |
|---|---|
 tissue | a group of similar cells that work together to perform a specific job in the body |
| organ | a combination of two or more tissues that work together to perform a specific function |
| organ system | a group of organs working together to perform body functions |
| organism | anything that can independently carry out life processes |
| unicellular | made of a single cell |
| multicellular | made of many cells |
| population | a group of individuals of the same species that live together in the same area at the same time |
| community | all of the populations of different species that live and interact in an area |
| ecosystem | a community of organisms and their non-living environment |
| heart, leaf, stomach | examples of organs |
| simple microscope | a microscope that contains only one lens |
| cell | the basic unit of living things |
| compound microscope | uses more than one lens to magnify an object |
| resolution | the ability to distinguish individual parts |
| convex lens | a lens that is thicker in the center that at the edges |
| electron microscope | uses a beam of electrons instead of light to create a magnified image |
| magnification | making an object appear larger than it really is |
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