1
molecules that are essential for life
2
the small parts that compose a cell
3
group of organisms of the same species
4
what you get when you mix atoms together
5
different communities and non-living things existing in a place
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different populations sharing a living space
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the best example is you as an individual
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the collection of items that help you breathe in and out
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set of cells that look similar and work in similar ways
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that thing composed of electrons, neutrons and protons
11
the basic unit of every living being
12
group of tissues that perform a specific task
