Scientists are conducting edna surveillance. why would the scientists use a control sample that is known to be from bighead carp? a: to see if samples contain the same dna b: to increase the number of dna strands c: to identify a new species of carp d: to produce multiple banding patterns

The answer is A. to see if samples contain the same DNA.

Option A

Explanation: This method employed for the surveillance for the detection of any invasive species in the water sample.

A control sample of the Bighead Carp is used as a control to check whether the sample that is tested includes the same DNA or not.

This method is used to find out whether the sample which is used for testing includes the DNA of any invasive species.

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.

the answer is:

carbon dioxide