"Going Deeper"

I forgot to get the message outlines out on Saturday night. So, if you were there and want to do the "Going Deeper" question, here it is:

Analyze the genealogies of Genesis 5 and 11. What is the number of generations from Adam to Noah and from Shem to Abraham? What are the parallels between Noah and Abraham, given the condition of God’s promise in Gen. 3:15 (a redemptive offspring through Eve) before they come on the scene? Seth, Shem and Abraham have other siblings. Why does God choose them over the others?