How does dividing species into kingdoms help us understand them? It helps us to see which animals existed first.
It helps us understand how animal organ systems work.
It helps us understand the differences and similarities among living things.
It helps us to predict which changes animals will make to adapt to their surroundings.

4. multiple crosses were made between true-breeding lines of black and yellow labrador retrievers. all the f1 progeny were black. when these progeny were intercrossed, they produced an f2 consisting of 91 black, 39 yellow and 30 chocolate. a. propose an explanation for the inheritance of coat color in labradors. b. propose a biochemical pathway for coat color determination and indicate how the relevant genes control coat coloration.