TASK DEFINITION: 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.
PROBLEM: Sentence: From viral infections did the first proto-oncogenes arise. Question: From what did the first proto-oncogenes arise?

SOLUTION: viral infections

PROBLEM: Sentence: If no unbalanced force acts on an object the object remains at constant velocity or at rest. Question: If no unbalanced force acts on an object the object remains at constant velocity or what?

SOLUTION: at rest

PROBLEM: Sentence: As it passes to the next level, most of the energy in a trophic level it is lost. Question: What happens to most of the energy in a trophic level as it passes to the next higher level?

SOLUTION:
it is lost