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.

[Q]: Question: Muscle atrophy due to age is called what? Answer: sarcopenia
[A]: Muscle atrophy due to age is called sarcopenia.


[Q]: Question: What occurs before the endometrium thickens in estrous cycles? Answer: ovulation
[A]: Ovulation occurs before the endometrium thickens in estrous cycles.


[Q]: Question: In which way do vertebrates reproduce? Answer: sexually
[A]:
Vertebrates reproduce sexually.