Question

examine the energy pyramid below.
tertiary consumers
(ex: coyotes)
secondary consumers
(ex: snakes and hawks)
primary consumers
(ex: mice, gooners, and birds)
producers
(ex: grasses, tree leaves, flowers, and vines)
is it possible for the top level to be wider than the level before it?
a. no, it is not possible for an ecosystem to support more predators than prey.
b. yes, if the population of coyotes swells, the top level will be larger than the level before it.
c. no, it is not possible for a large population of coyotes to exist because of their mating habits.
d. yes, if climatic conditions are right, there can be more predators than prey.

Explanation:

In an energy pyramid, energy decreases at each trophic level (producers → primary consumers → secondary consumers → tertiary consumers). Predators (higher trophic levels) rely on prey (lower levels) for energy. Ecosystems can’t support more predators than prey long - term because there wouldn’t be enough energy from prey to sustain more predators. Option A correctly states this. Option B is wrong as a “swell” in coyote population can’t be sustained without enough prey. Option C is incorrect as mating habits aren’t the reason for limited predator population; energy availability is. Option D is wrong as climatic conditions don’t change the fundamental energy flow rule that prey must outnumber predators for energy sustenance.

Answer:

A. No, it is not possible for an ecosystem to support more predators than prey.