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Biological Hiearchy

Terms

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population
a group of interacting individuals belonging to one species and living in the same geography
community
an assemblage of all the organisms living together and potentially interacting in a particular area
evolutionary adaptation
an inherited characteristic that enhances an organisms ability to survive and reproduce in a particular environment
organ system
a group of organs that work together in performing vital body functions
atom
the smallest unit of matter that retains the property of an element
tissue
a cooperative unit of many similar cells that perform a specific function within a multicellular organism
organ
a structure consisting of several tissues adapted as a group to perform a specific function
cell
a basic unit of living matter separated by its environment by a plasma membrane, the fundamental structure of life
molecule
a group of to or more atoms held together by covalent bonds
ecosystem
all the organisms in a given area, along with the abiotic factors with which they interact, biological community and physical environment
organelle
a structure with a specialized function within a cell
biosphere
the entire portion of earth inhabited by life
organism
an individual living thing, such as a bacterium, fungus, protist, plant, or animal

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