Me ! what is the last stage of speciation? a. the populations become adapted to different enviornments and eventually become so different that they cannot interbreed and produce fertile offspring. b the populations are isolated and thus they do not interbreed. c the populations have become totally seperated from one another. d the populations interbreed successfuly

equal distribution i think.

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consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.