PLEASE HELP Word Bank- cell, tissue, organ, organ system

_- The building block of all living things

_-Specialized tissue make up these

_- When more than one thing is working for a common purpose

_- Multiple layer of these create organs

1. Cell = The building block of all living things

2. Organ = Specialized tissue make up these

3. Tissue = When more than one thing is working for a common purpose

4. Organ System = Multiple layer of these create organs

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unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.