If a genetically based attraction to beautiful people contributes to survival, that trait will likely be passed on to subsequent generations. this best illustrates
a) gender typing.
b) natural selection.
c) behavior genetics.
d) collectivism.

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.