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.

Question: What preventive measure can protect even young children against diseases such as viral meningitis? Answer: vaccination
Vaccination can protect even young children against diseases such as viral meningitis.

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

Question: Birds possess a cloaca, a structure that allows water to be reabsorbed from waste back into this? Answer: blood stream

Birds possess a cloaca, a structure that allows water to be reabsorbed from waste back into this?