instruction:
In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.
question:
Question: What type of distance is caused by the force you apply to a machine over a given distance? Answer: input distance
answer:
Input distance type of distance is caused by the force you apply to a machine over a given distance.


question:
Question: What is the smallest unit of time commonly based on? Answer: second
answer:
Second is the smallest unit of time commonly based on.


question:
Question: Because all animals require an external source of what, they are called heterotrophic? Answer: food
answer:

Because all animals require an external source of food, they are called heterotrophic.