Speciation occurs in a specific, characteristic and predictable manner in all species

This statement is false. It is often not possible for speciation to be predicated as speciation of species depends on its habitat and interaction with other organisms in the habitat as well as the ever-changing environmental factors. It is thus very hard to model possible speciation that could happen.

Explanation:

No depends on the way natural selection differ as propodeced by by Charles Darwin and Larmark

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

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