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.

Sentence: The innate immune system serves as a first responder to pathogenic threats that bypass natural physical and chemical barriers of the body. Question: What serves as a first responder to pathogenic threats that bypass natural physical and chemical barriers of the body?
innate immune system

Sentence: Line graphs are especially useful for showing changes over time. Question: Line graphs are especially useful for showing changes over what?
time

Sentence: Most fossils are found in sedimentary rocks because organisms can be preserved in sedimentary rock. Question: Why are most fossils found in sedimentary rocks?

Organisms can be preserved in sedimentary rock.