The butterflies you established in your yard are now thriving, but you notice that some of the caterpillars are falling victim to predators and parasites. After some study and consultation, you wisely decide to .

plant more host plants in several different areas but otherwise do nothing

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.

the answer is c. altitude. hope this ! #brainiac