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Human Vocab week 2
human ocab week 2
Term | Definition |
---|---|
tissue | A group of cells that work together to carry out a particular task (job) in an organism. |
organs | A group of tissues that perform a complex function (job) in a body. Examples: lung, heart, liver) |
organ systems | A group of organs that work together to perform a certain task (job). Examples: Skeletal, Muscular, Digestive) |
many-celled organisms | (multicellular)- An organism made up of many cells. |
microscope | A device used by scientists to observe (see) extremely small objects or organisms. |
cell wall | A stiff structure that surrounds and protects a cell. Found in plants. |
organelles | A tiny structure within a cell that performs a specific function (job) for that cell. They float in the cytoplasm of the cell. |
skeletal system | The system that is made up of all the bones in the body. |
bones | The organs that make up a skeleton. |
bone marrow | Spongy material inside long bones that produces blood cells. |