All these descriptions are characteristic of human populations in industrialized countries except relatively small family size several potential reproductions per lifetime type II survivorship curve type I survivorship curve relatively even age structure Which of the following are important biotic factors that can affect the structure and organization of populations in nature? A) precipitation, wind, temperature B) nutrient availability, soil pH, light intensity C) predation, competition with other conspecifics, disease D) all of the above E) only A) and B).