Sylvia
What does this sentence mean? Disease pathogens and their crop hosts, like all other predators and prey,are in a constant evolutionary dance with each other,changing and improving without cease as one evolves a slight edge over its opponent,only to have the opponent respond to this challenge by developing its own edge.(from Animal,vegetable,miracle,a year of food life-Barbara Kingsolver)Sorry,base language is English
Aug 6, 2014 6:07 AM
Answers · 1
simple single celled organisms like germs... fight complex organisms like humans and vice versa. When complex organisms learn how to fight germs better (i.e., penicillin and other germ killing medicines) germs learn how to fight back (i.e., penicillin resistance germs).
August 6, 2014
Still haven’t found your answers?
Write down your questions and let the native speakers help you!