Researchers want to use edna to look for an invasive species in a waterway. which of the following steps should they do first? a. sort the edna into bands on a gel. b. cut the edna into fragments of different sizes. c. isolate edna from water samples taken from the waterway. d. compare the edna with a positive control.

Which type of respiration takes place when there is no oxygen present

The activity of the modern sample is 1.10 bq . how long does that measurement take?

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.