TASK DEFINITION: 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.
PROBLEM: Question: Which of the following statements best describes a complex machine? Answer: It is made of more than one simple machine.

SOLUTION: A complex machine is described by: it is made of more than one simple machine.

PROBLEM: Question: What is at the top of the mesosphere? Answer: mesopause

SOLUTION: The mesopause is at the top of the mesosphere.

PROBLEM: Question: All cells need what for processes like active transport? Answer: energy

SOLUTION:
All cells need energy for processes like active transport.