allelic frequencies do not change What is genetic equilibrium? What 5 things are required for genetic equilibrium to happen in a population? random mating no mutation no natural selection selection no movement into or out of the population very large population Section 6 Speciation _evolution of a new species What is speciation? formerly interbreeding organisms can no longer mate and What is reproductive isolation? produce fertile offspring physical barrier separates a population What happens in geographic isolation? lava, rivers, rocks What types of things can cause geographic isolation? organisms don’t mate because of different behaviors or mating What is behavioral isolation? patterns eastern and western meadowlarks won’t mate because Give an example of behavioral isolation. they have different songs to attract mates species reproduce at different times What is temporal isolation? orchid who live in same place but release pollen on Give an example of temporal isolation. different days Evolution Vocabulary Terms and Concepts HMS Beagle directional selection Galapagos Islands fossils stabilizing selection Darwin transitional forms disruptive selection Evolution comparative anatomy population Hutton and Lyell homologous structures gene pool Lamarck vestigial organs Acquired traits embryo species On the Origin of Species analogous structures genetic equilibrium biochemical evidence genetic drift Natural Selection bottleneck effect Survival of the fittest Biological diversity founder effect Artificial Selection variation relative frequency Adaptation camouflage reproductive isolation Fitness mimicry geographic isolation Struggle for existence gene shuffling temporal isolation descent with modification mutation behavioral isolation common descent
What is genetic equilibrium? allelic frequencies do not change What 5 things are required for genetic equilibrium to happen in a population? random mating no natural selection selection very large population no mutation no movement into or out of the population Section 6 Speciation What is speciation? _evolution of a new species What is reproductive isolation? formerly interbreeding organisms can no longer mate and produce fertile offspring What happens in geographic isolation? physical barrier separates a population What types of things can cause geographic isolation? lava, rivers, rocks What is behavioral isolation? organisms don’t mate because of different behaviors or mating patterns Give an example of behavioral isolation. eastern and western meadowlarks won’t mate because they have different songs to attract mates What is temporal isolation? species reproduce at different times Give an example of temporal isolation. orchid who live in same place but release pollen on different days Evolution Vocabulary Terms and Concepts HMS Beagle Galapagos Islands Darwin Evolution Hutton and Lyell Lamarck Acquired traits On the Origin of Species Natural Selection Survival of the fittest Artificial Selection Adaptation Fitness Struggle for existence descent with modification common descent fossils transitional forms comparative anatomy homologous structures vestigial organs embryo analogous structures biochemical evidence Biological diversity variation camouflage mimicry gene shuffling mutation directional selection stabilizing selection disruptive selection population gene pool species genetic equilibrium genetic drift bottleneck effect founder effect relative frequency reproductive isolation geographic isolation temporal isolation behavioral isolation