} D. Traits must be inherited from one generation to the next. They were therefore able to eat aquatic plants and get enough food to survive and reproduce. The duck's webbed feet aid in its ability to navigate bodies of water. B. School University of Illinois, Urbana Champaign; Course Title BIOC 110; Uploaded By DrElectron5206. They evolved from a common ancestor. A. font-size: 16px; Study with Quizlet and memorize flashcards containing terms like factor: 6x-12x-18, factor: 5x-15x-50, factor: 9x-36x+27 and more. margin: 1em 0; While webbed feet were evolving in ancestral ducks, with each generation: Most ducks had about the same amount of webbing on their feet as their parents. Different finch species live on different islpds. background-color: #f5853b; The amount of webbing on a duck's feet is a heritable trait. Solving for a side in right triangles with trigonometry (video) If you have an angle and the side opposite to it, you can divide the side length by sin () to get the hypotenuse. Webbed feet are ideal for birds that swim, on the water's surface or under. text-align:center; width: 1em !important; Mutation rates increase in response to pressure from natural selection, as extra genetic variation is needed for natural selection to be effective. Which is an example of the founder effect? border-bottom: 10px solid #33ac08; /*