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vocab.
Term | Definition |
---|---|
organism: | A living thing. |
reproduction: | To produce offspring. The ability to reproduce is a characteristic of all living things. |
species: | A group of similar organisms that breed and produce fertile offspring in nature. |
unicellular (you-knee-cell-you-lar): | One-celled. |
autotroph (auto-trof): | An organism that makes its own food. |
cell: | The smallest structural unit or "building block" of life. |
characteristic: | A distinctive feature; a trait. |
homeostasis (home-ee-oh-stay-sis): | The maintenance of a balanced internal environment. |
heterotroph (het-err-oh-trof): | Organisms not able to make their own food. |
Redi- | experiment with meat and maggots proving life comes from life |
Pasteur- | experiment with broth and bacteria proving life comes from life. |
Hooke- | first to recognize cells under a microscope |
Leeuwenhoek- | first to see moving organisms under a microscope |
Schleiden- | all plants made of cells |
Schwan- | all animals made of cells |
Virchow- | new cells come from cells that already exist |
Cell Theory- | 1. All living organisms are made of cells 2. Cells are the basic unit of structure and function in living organisms 3. All cells are produced from other cells |