question: What sentence would provide a factual answer to this question: "What requires nutrients to grow and heal?"

answer: an animal requires enough nutrients to maintain good health

question: What sentence would provide a factual answer to this question: "When you increase the viability of food, you increase the ability to"

answer: as ability to preserve food increases , the ability to transport food increases

question: What sentence would provide a factual answer to this question: "If I wanted to prevent a blister when running I can"

answer:
as the thickness of an object increases , the resistance to damage of that object will increase