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Darwin suggested that populations of organisms become better adapted to the environment through:
According to the idea of natural selection, organisms with the best environmental adaptations have _______.
Evolving long necks have enabled giraffes to feed on leaves that others can't reach, giving them a competitive advantage. It is the best example of:
Which of the following, in your opinion, is responsible for gradually increasing the genes that confer HIV resistance in human populations in high-HIV-infection areas over time?
What could have caused the beak size and shape variations among finches as observed by Darwin on Galapagos Islands?
A characteristic is heritable if it is _____ from parents to offspring.
Which of the following statements best describes evolutionary theory?
