Explanation:
Because people who answer first tend to rush their answers and not do a clear explanation, they often get less recognition than the second person, who usually puts more effort into their answer. The example you gave is an example for that, as the second person has an explanation and more words.
Maybe detritivore and parasite. That's the best I can think of
Greater food quantitiy shores have the most pollution
the root cause for most mutations is radiation (in humans) and parasites and diseases and solar radiation for animals that are subterranean in origin.