Describe the expected shape of a survivorship curve under the following scenarios. How would the shape differ from that of your total survivorship curve for the time period 1950 to present?
A common childhood disease such as chicken pox becomes lethal and no cure is found.
Medical advances continue and most diseases and infant mortality are eliminated.
In a far off land, there is a civil war and bombing raids indiscriminately kill young, middle aged, and old.