Assume that successful reproduction in a rare salamander species, wherein all individuals are females, relies on those females having access to sperm from males of another species but that the resulting embryos show no signs of a genetic contribution from the sperm. In this case, the sperm appear to be used only for

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The sperm are likely being used for egg activation, which is the process by which the egg's metabolic activity is initiated and the egg is prepared for fertilization. This occurs independently of any genetic contribution from the sperm.

Assume That Successful Reproduction in a Rare Salamander Species, Wherein