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: Besides the concentration of dissolve oxygen and nutrients in the water, what other factor limits aquatic organisms? Answer: availability of sunlight
[A]: Besides the concentration of dissolve oxygen and nutrients in the water, the availability of sunlight limits aquatic organisms.

[Q]: Question: What planet did the voyager 1 spacecraft visit in 1980? Answer: saturn
[A]: The voyager 1 spacecraft visited saturn in 1980.

[Q]: Question: Where do most skin structures originate in? Answer: dermis
[A]:
Most skin structures originate in the dermis.