Question

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

Explanation:

To use eDNA (environmental DNA) to detect an invasive species in a waterway, the first - step is to collect the sample that may contain the eDNA. Water is the medium where the eDNA of aquatic organisms is present. Other steps like sorting DNA, comparing with controls, or cutting DNA are later steps in DNA analysis.

Answer:

A. Collect samples of water