Matter in Ecosystems
10
Directions: Select the correct answer from each drop-down menu.
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.
