A small town in the piney woods of East Texas has a soccer field composed of native grasses. The soccer field is mowed once a week.
What effect does continual mowing have on the ecology of the field?
As ecosystems move through the stages of succession, the populations of organisms in them change. Which of the following describes the stages of succession likely to have the most species diversity?
The rocky material left behind by a retreating glacier forms what is called a moraine. When primary succession occurs on a moraine, which life-forms will help create the soil by breaking down bare rock?
During ecological succession, how does the growth of young hardwoods affect the organisms living in an ecosystem?
Which statement best describes the differences in species diversity between an ecosystem beginning the process of primary succession and one beginning the process of secondary succession?
As ecosystems move through the stages of succession, the populations of organisms in them change. Which of the following describes the stage of succession likely to have the least species diversity?
The graph below shows the changes in the number of species in an ecosystem.
Which event was most likely the cause of the changes in the species diversity in this ecosystem?
The graph shows the basic changes in a forest community after a disturbance occurred.
The information shown in the graph suggests that the changes in the forest community were caused by _____.
How do an increase in the organic matter in soil and an increase in the soil depth affect the population of plants in an area?