Challenge: Based on the weathering patterns, guess the rock type shown in each photo.

Which beat describes the brain stem

Which of the following is a true statement? a. individuals evolve to have adaptations. b. individuals have adaptations that can change over time. c. individuals have traits that may or may not make them successful at reproduction. d. populations cant evolve, only individual organisms.

Can a trait be both polygenic and have multiple alleles? explain why or why not.