What once was an open pasture on a long abandoned farm has changed over time,without the direct influence of humans.After the cattle had been removed,shrubs and bushes could be seen dotting the grass-covered hillsides.A few years later,small pine trees and then larger deciduous trees appeared.Now,there are so many trees and shaded regions it is difficult to tell that this was once a field.
-The changes in this field,from grasses to shrubs to trees,represent
A)ecological succession.
B)climax production.
C)biological evolution.
D)ecological adaptation.

Question

Quizplus · Accepted Answer

The changes in the field from grasses to shrubs to trees represent ecological succession, which is the gradual and predictable process of change in the composition of a community of organisms over time. It involves the colonization of new species and the gradual replacement of existing species in a particular area. In this case, the field went through the process of primary succession as it was previously devoid of life.

What Once Was an Open Pasture on a Long Abandoned