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all the parts of the planet that are inhabited by living things; sum of all Earth's ecosystems
community of living things plus the nonliving featured of the environment that support them
process by which plants use the sun's energy to convert water and carbon dioxide into sugars
organism that makes its own food (autotroph) and produces organic molecules that serve as food for other organisms in its ecosystem
inherited characteristic that improves an organism's ability to survive and reproduce in a particular environment
process by which individuals with inherited characteristics well-suited to the environment leave more offspring than do other individuals
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