The diversity of vascular plants is organized based on anatomical differences in their roots, stems, and leaves. Use a specific type of plant to explain the relationship between the structures of tissues and the function of either gas exchange and movement of fluids.

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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.