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.
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Question: Question: Knees and elbows are examples of what part of the skeletal system? Answer: joints

Answer: Knees and elbows are examples of the joints of the skeletal system.


Question: Question: Which state of matter has the lowest density? Answer: gases

Answer: Gases have the lowest density.


Question: Question: What is the main makeup of the cell membrane? Answer: phospholipids

Answer:
Phospholipids are the main component of the cell membrane.