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The Sum total of all processes in an organism which converts energy and matter from outside sources and use that energy and matter to sustain the organism's life functions.
The sum total of all processes in an organism which uses energy and simple chemical building blocks to produce large chemicals and structures necessary for life.
The sum total of all processes in an organism which break down chemicals to produce energy and simple chemical building blocks.
The process by which green plants and some other organisms use the energy of sunlight and simple chemicals to produce their own food
Special structures that allow living organisms to sense the conditions of their internal or external environment.
The process by which physical and biological characteristics are transmitted from the parent (or parents) to the offspring.
The idea that long ago, very simple life forms spontaneously appeared through chemical reactions.
A unit of one of more populations of individuals that can reproduce under normal conditions, produce fertile offspring, and are reproductively isolated from other such units.
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