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: Vertical layering is an important feature of the terrestrial type of what kind of community? Answer: biome
[A]: Vertical layering is an important feature of the terrestrial type of biome kind of community.


[Q]: Question: Formic acid is found in the secretions of? Answer: stinging ants
[A]: Formic acid is found in the secretions of stinging ants.


[Q]: Question: Heart valves prevent what kind of blood flow from happening in the heart? Answer: backflow
[A]:
Heart valves prevent the backflow of blood from happening in the heart.