A team of ecologists observed feeding patterns of several populations in the desert. The energy pyramid shown above depicts the feeding patterns the ecologists observed. Which of the following best explains the difference in the amount of available energy in the trophic levels of the desert ecosystem?
A food chain is illustrated above. What do the wavy arrows most likely represent?
Part of a desert food web is diagrammed above. Which of the following will most likely result if all of the primary consumers are removed from this ecosystem?