Assertion: evolution's theory | /r/HasProperty | scientific
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Source sentences:
text: Philosopher of science Karl R. Popper set out the concept of falsifiability as a way to distinguish science and pseudoscience: testable theories are scientific, but those that are untestable are not.
text: Popper responded to news that his conclusions were being used by anti-evolutionary forces by affirming that evolutionary theories regarding the origins of life on earth were scientific because "their hypotheses can in many cases be tested.