A grassland ecosystem (ecosystem X) supports 13 different grass species. A different grassland ecosystem (ecosystem Y) supports
just one species of grass. Bison graze on all of the grass species in both of these ecosystems. Ecosystem X 13 species of grass Ecosystem Y 1 species of grass A drought strikes both ecosystem X and ecosystem Y, but the bison in ecosystem X are better able to survive it. Which of the following is a likely explanation? A. The bison in ecosystem X only eat one species of grass. B. Ecosystem Y has a greater amount of biomass. C. Ecosystem X has a greater amount of biodiversity. D. Ecosystem Y has a greater amount of biodiversity.
Grassland, area in which the vegetation is dominated by a nearly continuous cover of grasses. Grasslands occur in environments conducive to the growth of this plant cover but not to that of taller plants, particularly trees and shrubs. The factors preventing establishment of such taller, woody vegetation are varied.
A. The bison in ecosystem X only eat one species of grass.
B. Ecosystem Y has a greater amount of biomass.
C. Ecosystem X has a greater amount of biodiversity.
D. Ecosystem Y has a greater amount of biodiversity.
If grass species are drought-resistant, then they will allow the bison to continue feeding on them. X has more species (13) so it is more likely to have some drought-resistant grass.
Answer is C. Ecosystem X has a greater amount of biodiversity.
between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases
