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Metal speciation in natural waters is of increasing interest and importance because toxicity, bioavailability, environmental mobility, biogeochemical behavior, and potential risk in general are strongly dependent on the chemical species of metals.etal speciation in natural waters is of increasing interest and importance because toxicity, bioavailability, environmental mobility, biogeochemical behavior, and potential risk in general are strongly dependent on the chemical species of metals.
Speciation from a single ancestor in the same geographic region. Define sympatric speciation. Sympatric speciation occurs in situations where the populations undergoing speciation are not isolated by a geographic barrier. The two or more species produced by sympatric speciation overlap in their geographic ranges. Reproductive isolation prevents interbreeding even though there is opportunity to freely mate.