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.

[EX Q]: Question: What works by selecting for alleles that confer beneficial traits or behaviors, while selecting against those for deleterious qualities? Answer: natural selection
[EX A]: Natural selection works by selecting for alleles that confer beneficial traits or behaviors, while selecting against those for deleterious qualities.

[EX Q]: Question: Lyme disease is caused by what kind of organim? Answer: bacteria
[EX A]: Lyme disease is caused by bacteria.

[EX Q]: Question: The hemolymph and body cells exchange chemicals within what body part? Answer: the sinuses
[EX A]:
The hemolymph and body cells exchange chemicals within the sinuses body part.