In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.
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Question: Sentence: Natural selection works by selecting for alleles that confer beneficial traits or behaviors, while selecting against those for deleterious qualities. Question: What works by selecting for alleles that confer beneficial traits or behaviors, while selecting against those for deleterious qualities?

Answer: natural selection


Question: Sentence: The amount of energy required to begin a chemical reaction is known as the activation energy. Question: What is the amount of energy required to begin a chemical reaction known as?

Answer: activation energy


Question: Sentence: Regular changes in biology or behavior that occur in a 24 hour cycle are part of the circadian rhythm. Question: What are regular changes in biology or behavior that occur in a 24 hour cycle?

Answer:
circadian rhythm