In this task, you are given a question and a corresponding answer. Your task is to generate a fact statement that is useful in answering the given question.

Question: Shivering is when an animal creates heat by shaking to keep the body what? Answer: agreeable temperature.
shivering is when an animal creates heat by shaking to keep the body warm

Question: If you see a mushroom on an old decaying log, its because a mushroom is a decomposer, which gets its food from? Answer: non-alive things.
dead organisms are the source of nutrients for decomposers

Question: Sound can be used for communication by? Answer: creatures.

sound can be used for communication by animals