Use the image to answer the question below.

Question

Which one of the following animals is most likely to be:

Which one of the following animals is most likely to be
a keystone species, based on the food web provided?
(1 point)
Mouse
frog
grasshopper
deer

Answer 1

The frog is most likely to be a keystone species in this food web, as it is the only species shown that preys on multiple other species (mosquitoes and flies). A keystone species is one that has a disproportionately large impact on its ecosystem relative to its abundance. By controlling the populations of other species, the frog helps regulate the overall balance of the ecosystem.