Match the description with the correct term. Answerscan be used more than once!  

Group of answer choices

Crayfish fight each other to determine which male will mate withfemales. They fight by charging each other and clashing their clawstogether. The male with bigger claws usually wins. What is thisdescribing?

      [ Choose ]           Evolutionary trade-off           Intersexualselection           Stabilizing selection           Intrasexual selection           Founder effect     

In a small group of people living in a remote area, there is ahigh incidence of “blue skin”, a condition that results from avariation in the structure of hemoglobin. All of the “blue-skinned”residents can trace their ancestry to one couple, who were amongthe original settlers of this region. The unusually high frequencyof “blue skin” in the area is an example of

      [ Choose ]           Evolutionary trade-off           Intersexualselection           Stabilizing selection           Intrasexual selection           Founder effect     

Robins typically lay four eggs during each reproductive event.If more than four chicks are hatched, each may be malnourished, andif fewer than four chicks are hatched, it may result in too fewviable offspring to pass on the parent’s genes. This is an exampleof [ Choose ]           Evolutionary trade-off           Intersexual selection           Stabilizing selection           Intrasexualselection           Founder effect