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Which of the following systems in absorbing oxygen and releases carbon dioxide

In the african savanna,more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

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.