1 point
4. Which of the following best describes Darwin's theory of natural
selection?
Giraffes would obtain neck lengths corresponding to leaf height over multiple
generations
Giraffes would obtain neck lengths corresponding to leaf height without selective
pressures
Giraffes would never obtain neck lengths corresponding to leaf height because of
ecological conditions
Giraffes would obtain neck lengths corresponding to leaf height within a
generation
Giraffes would obtain neck lengths corresponding to leaf height if the appropiate
alleles were newly introduced into the gene pool