How do the circulatory and respiratory systems have to do with endurance in running?

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects