Why is a change in dry mass of an organism the best indicator of growth?

Actually, dry mass is a more reliable measure of mass than fresh mass because the former excludes the fluctuating water concentrations in the biological material measured which is present in the latter. Actually, dry mass , the mass of a biological sample after the water content has been removed, usually by placing the sample in an oven. The dry mass is used as a measure of the biomass of a sample.

Explanation:

answer; the male's sperm cells have mitochondria, but because the sperm contributes dna but no cytoplasm, no mitochondria are passed to the egg at ferilization;

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