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Answer:
When energy flows out of a system, it must all flow into the surroundings.
When energy flows out of a system, ΔEsystem is negative.
When energy flows into the surroundings, ΔEsurroundings is positive.
Therefore,
─ ΔEsystem= ΔEsurroundings
....meiosis.., however, I'm not sure that the zygote goes through division. After the two gametes intercept and FORM the zygote, I'm pretty sure the zygote doesn't deconstuct from a dipliod back into a hapliod