Answer:
Explanation:Humanity must stop the pace of wildlife extinctions — or face extinction itself, according to a growing body of research.. At a time when more than 1 million species are at risk of extinction — and the links between human health and the health of the planet are clear — the stakes have never been higher, experts say.
The answer is an electric current.
An electric current is running through the gel <span>in the electrophoresis with positive pole on the bottom.</span>Since DNA is negatively charged, it migrates <span>toward the positive pole of the gel, respectively, </span><span>it migrates toward the bottom of the gel.</span>
Rough er are flattened spaces while smooth er are tubular
rough er have ribosomes attached to its outer surface while smooth er does not
rough er plays a part in protein synthesis, while smooth er synthesises fats and steroids, and also detoxifies harmful substances