Kangaroo rat population will show an increase and Cougars will eat more jack rabbits than usual will be least expected.
Step-by-step explanation:
The food chain of the Grand Basin in Nevada shows that kangaroo rat is the only eaten by Mojave rattlesnake.
The overtaking of all the Mojave rattlesnake would cause the survival of kangaroo rat because no other predator has its prey on kangaroo rat.
The no eating will lead an increase number of kangaroo rats as long as they live naturally on the trophic level.
It is deduced that kangaroo rat is not transferring any energy to the other trophic level neither the biomass.
Cougars will eat more jack rabbits than usual because they have been preying on Mojave rattle snake and jack rabbit, the disappearance of Mojave rattle snake will cause them rely on cougars which will lead to compete for the food among the species.