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: The lungs of mammals are unique in having what? Answer: alveoli
answer:
The lungs of mammals are unique in having alveoli.


question:
Question: All cells need what for processes like active transport? Answer: energy
answer:
All cells need energy for processes like active transport.


question:
Question: When waves of two different frequencies interfere, what phenomenon occurs? Answer: beating
answer:

When waves of two different frequencies interfere, beating occurs.