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: What occurs if oxygen cannot be obtained at a sufficient rate? Answer: anaerobic respiration
[A]: Anaerobic respiration occurs if oxygen cannot be obtained at a sufficient rate.


[Q]: Question: What is the process that allows organisms with better traits to survive and produce? Answer: natural selection
[A]: Natural selection is the process that allows organisms with better traits to survive and produce.


[Q]: Question: What structure of the heart receives oxygen-poor blood from the body, then pumps the blood into the right ventricle? Answer: right atrium
[A]:
The right atrium receives oxygen-poor blood from the body, then pumps the blood into the right ventricle.