Do you think meiosis or mitosis allows for greater biodiversity or variations in a species? Why do you think that?

No it does not

Explanation:

Mitosis and Meiosis is just copies of unicellular organisms. They products of these processes are the same as their "parent"

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.

answer; the above statement is (true);