the process of becoming adapted to an environment; an anatomical, physiological, or behavioral change that improves a population's ability to survive
one of the fundamental units of measurement that describes length, mass, time, and other quantities and from which other units are derived
chemical compound that provides physical structure and brings about movement, energy use, and other cellular functions
the scientific study of living organisms and their interactions with the environment
in biology, the smallest unit that can perform all life processes; cells are covered by a membrane and contain DNA and cytoplasm
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