EVOLUTIONARY CHANGE IS RANDOM AP BIOLOGY BIG IDEA #1 – Part A – Section 3.
Three major factors alter allele frequencies and bring about most evolutionary change: –Natural selection –Genetic drift –Gene flow Concept 23.3: Natural.
Natural Selection: A Summary Individuals with certain heritable characteristics survive and reproduce at a higher rate than other individuals Natural selection.
Chapter 23: The Evolution of a Population. Population Group of individuals in a geographic location, capable of interbreeding and producing fertile offspring.
