Examples include lions. E) prey only on the least abundant species in the community. Which of the following could qualify as a top-down control on a grassland community? B. prey on the community s dominant species ʹ. prey on the community's dominant species. e. prey only on the least abundant species in the community . c. prey only on the least abundant species in the community. Keystone predators can maintain species diversity in a community if they _____. b. prey on the community's dominant species. 1. D. … stable conditions with no disturbance. d. prey on the community's dominant species C. allow immigration of other predators. human intervention to eliminate disturbance. Keystone species, in ecology, a species that has a disproportionately large effect on the communities in which it occurs. B. prey on the community s dominant species ʹ. By keeping the populations and range of their prey in check, keystone predators, impact other predators as well as other animal and plant species further down the food chain. small and … They can have a profound influence on the balance of organisms in a particular ecosystem.Introduction or removal of this predator, or changes in its population density, can have drastic cascading effects on the equilibrium of many other populations in the ecosystem. A.competitively exclude other predators B.allow immigration of other predators C.prey on the community's dominant species D.prey only on the least abundant species in the community Keystone predators can maintain species diversity in a community if they _____. C) allow immigration of other predators. E. none of the above 14 Keystone predators can maintain species diversity in a community if they: Select only ONE answer choice. 2. Keystone predators can maintain species diversity in a community if they _____. Such species help to maintain local biodiversity within a community either by controlling populations of other species that would otherwise dominate the community or by providing critical resources for a wide range of species. Keystone predators can maintain species diversity in a community if they ANSWER: Correct Chapter 54 Question 6 Part A Food chains are sometimes short because ANSWER: moderate levels of disturbance. frequent massive disturbance. Keystone predators may increase the biodiversity of communities by preventing a single species from becoming dominant. A. competitively exclude other predators. d. reduce the number of disruptions in the community. B) prey on the community's dominant species. Sea otters are keystone predators that help to maintain high diversity levels by eating sea urchins. c. allow immigration of other predators. D) reduce the number of disruptions in the community. large and close to a mainland. a. competitively exclude other predators. Keystone predators can maintain species diversity in a community if they. Remove a keystone predator, and the population of creatures it once hunted can explode, pushing out other organisms and reducing species diversity. A.competitively exclude other predators B.allow immigration of other predators C.prey on the community's dominant species D.prey only on the least abundant species in the community Keystone species fall into broad categories: Predator. effect of grazing intensity by bison on plant species diversity. C. allow immigration of other predators. Answer: B intensive disturbance by humans. Keystone predators can maintain species diversity in a community if they A) competitively exclude other predators. b. allow immigration of other predators. Keystone predators can maintain species diversity in a community if they. A. competitively exclude other predators. E. none of the above 14 Keystone predators can maintain species diversity in a community if they: Select only ONE answer choice. D. … a. competitively exclude other predators.