During times of poverty or famine, people are often faced with a shortage of food. maxwell is studying how the energy in food is transferred from one trophic level to another in a food pyramid. he learns that by decreasing the number of trophic levels in a food pyramid, less energy is lost to the environment as heat. maxwell concludes that in times of food shortage humans should replace the in their diets with in order to decrease the number of trophic levels in their food pyramid.

explanation:

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

answer: a) a compound microscope has a greater magnification ability than a simple microscope.

explanation:

the darker peppered moth species were favored due to the fact that the industrial revolution had made all the nearby trees a darker color instead of white.

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!