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LT 2a: Levels of Org
LT 2a: Levels of Body Organization
Question | Answer |
---|---|
organism | a living thing that can carry out life processes by itself. |
tissue | a group of similar cells that perform a common function. |
organ | a structure made up of a collection of tissues that carries out a specialized function. |
organ system | a group of organs that work together to perform body functions. |
unicellular organism | a single-celled organism.(prokaryotic) |
multicellular organism | an organism with more than one cell(eukaryotic) |
Cells | The smallest unit of life. An example of a single celled organism is an amoeba |
Tissues | A bunch of these make organs in all organisms. An example is epithelium tissue making up the stomach of a lion. |
Organs | A bunch of these make up all organ systems. An example is a lung in the respiratory system. |
Organs | An example of this is my skin, which provides a protective layer for my body |
Organ Systems | An example of this is a bear and its digestive system. The digestive system is responsible for breaking down food for energy. |