Which of these is the correct explanation of mass change in developing eggs as illustrated in the graph? Select one: A. A is the correct representation of mass change because as the baby bird develops inside the egg, it grows new parts. B. B is the correct representation of mass change because the baby bird uses cellular respiration to fuel the biosynthesis of new parts and gives off mass as CO2. C. C is the correct representation showing that nothing new comes into the egg and nothing leaves the egg, so it retains the same mass.

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A: Answer is a.)  it is unique to amphibian embryos.

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Abiogenesis