A cruise ship full of people crashes onto an island, and they are not contacted by the outside world for 100 years. The resulting island population depends on the demographics of the people on the cruise ship. For each scenario, match the demographic feature that would be limiting for the growth of that population.
1. a cruise that happened to be carrying a large supply of birth control
2. a cruise full of cancer patients
3. a male-only cruise
4. a cruise full of retirees
a) age structure
b) sex ratio
c) mortality rate
d) fecundity