Generations of consistent changes in the population in terms of gaining new genes resulting in new traits, some populations tend to become more genetically different from their ancestral population. speciation true cladogram false cladogram false mimicry false Single Branching diagram that shows relationships between “groups” through their shared characteristics and ancestry. Anagenesis false cladogram true MSC false mimicry false Single Defines a species as a group of organisms found in communities which share distinctive morphology to which a systematist will consider to be of the same species. Anagenesis false PSC false MSC true mimicry false Single Present when there is a morphological resemblance between individuals even though they are part of different species. Anagenesis false PSC false temporal false mimicry true Single Occurs when a single species’ characteristics change over time, making it different from its ancestral population. Anagenesis true PSC false temporal false habitat false Single Concept defines species as a group of organisms who have the same ancestor. Therefore, species under this concept are then considered to be more related with species part of the same clade than outside the clade. behavioral false PSC true temporal false habitat false Single This type of isolation happens when two species are not reproductively available at the same time. behavioral false mechanical false temporal true habitat false Single This type of isolation mechanism occurs when populations that can potentially interbreed happen to exist in different locations which prevent any contact. behavioral false mechanical false speciation false habitat true Single Occurs when behaviors such as visual communication (e.g., preference on plumages in birds), acoustical communication (e.g., mating calls or songs in birds), and chemical communication (e.g., insect sex pheromones) affect the search and preference for mates, preventing mating between populations. behavioral true mechanical false speciation false cladogram false Single Happens when individuals try to copulate but a difference in reproductive organs does not permit sperm transfer. MSC false mechanical true speciation false cladogram false Single