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: Most turtle bodies are covered by a special bony or cartilaginous shell developed from their ribs. Question: Most turtle bodies are covered by a special bony or cartilaginous shell developed from their what?

Answer: ribs

Question: Sentence: Induced or spontaneous are the two methods in which mutations arise in dna. Question: What are the two methods in which mutations arise in dna?

Answer:
induced or spontaneous