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.

[Q]: Sentence: Mutation is essential in order for evolution to occur because it increases genetic variation and the potential for individuals to differ. Question: What phenomenon is essential in order for evolution to occur because it increases genetic variation and the potential for individuals to differ?
[A]: mutation


[Q]: Sentence: The cardiovascular system in the human body consists of the heart, a network of blood vessels, and blood. Question: Which system in the human body consists of the heart, a network of blood vessels, and blood?
[A]: cardiovascular system


[Q]: Sentence: Most organelles are not found in prokaryotic cells. Question: In which type of cells are most organelles not found?
[A]:
prokaryotic cells