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: Which are the closest living relations to land plants? Answer: charophytes
[A]: Charophytes are the closest living relations to land plants.


[Q]: Question: Portal veins carry blood between what? Answer: pairs of capillary beds
[A]:
Portal veins carry blood between pairs of capillary beds.