Molecules on the outside of the egg or sperm may trigger events that prevent their union if they are not from the same species. The type of isolating mechanisms displayed here is

Question

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Biochemical isolating mechanisms involve molecular signals or reactions that prevent interbreeding between different species, such as the molecules on the outside of egg and sperm that can prevent fertilization if they are not from compatible species.

Molecules on the Outside of the Egg or Sperm May