What prevents the back flow of urine from the urinary bladder to the kidneys /5894516/86d94a98? utm_source=registration

What occurs to the cell during mitosis

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.

Which feature would you expect to find in a population in which sexual selection depends on male competition?