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Complete each gap with the most suitable term. Individuals in a population have great .................................... potential, yet the numbers in a population remain roughly .................................... . This is because many die from environmental factors and therefore do not reproduce. There is .................................... among members of a population, and those with characteristics best adapted to the environment survive. They may reproduce and pass on their .................................... to their offspring. This may cause a change in the .................................... pool of the population and, over time, may result in evolutionary change.