Cell- Something you need to have to be living, and is made up of a bunch of organelles.


Tissue- A bunch of cells together. Organ- A bunch of tissues together. System- A bunch of organs working together.


Complex multi cellular organism- Something like us, a sheep that is made up of a bunch of systems.


Multi-cellular organism- Something that’s cell cannot live on it’s own.


Single-cellular organism- Something that’s cell can live on it’s own.


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