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 do you call the hard case that surrounds the soft parts of some animals? Answer: exoskeleton
answer:
You call the hard case that surrounds the soft parts of some animals the exoskeleton.


question:
Question: Which kind of muscle regulates air flow in lungs? Answer: smooth
answer:
Smooth muscle regulates air flow in lungs.


question:
Question: What kind of organisms are yeasts? Answer: single-celled
answer:

Single-celled are yeasts.