A variety of small animals and insects can live in a mountain tundra ecosystem. The ground in such places is often rocky with very little soil. The plants that grow there are fragile and grow slowly. What would most likely happen in the ecosystem if many people carelessly trampled the tundra and killed off the plants? A. The amount of soil in the tundra would increase. B. The new plants would grow more quickly. C. The number of rocks in the tundra would increase. D. The populations of many animal species would decrease. Reset Next Question