Researchers want to use edna to look for an invasive species in a waterway. which of these steps should they do first? a. cut dna into small pieces. b. compare samples with a control. c. collect samples of water. d. sort dna into bands on a gel.

the first step is

c. collect samples of water

Explanation:

without a sample the researcher can do nothing.

C. Researchers should first collect samples of water.

Explanation:

eDNA or environmental DNA is a technique that allows us to find DNA from the environment, rather than collecting living organisms. In this case, for analysis of species in a waterway we need to collect water first to later do the laboratory work.

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would be the answer. hope this .