14 levels of Organization
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ecosystem
a community + the physical environment
biome
a geographic region containing specific plant and animal species
tissue
group of similar cells working together
organ
group of tissue working together
multicellular organism
organism made of multiple cells
population
organisms of the same species living in a given area
subatomic particles
protons, neutrons, electrons
atom
smallest unit of an element
cell
smallest unit of life
organelle
specialized structures in cell
community
the populations of all species living in a given area
molecule
2 or more atoms bonded together
biosphere
all regions of the earth and atmosphere where life can exist
organ system
group of organs working together