Due to the short-term environmental change of a drought, much of the soil in an area can no longer support a species of wildflower. As a result, the plants now grow only in small regions within the area. Which effect of an environmental change does this best illustrate? migration loss of habitat adaptation extinction

The scenario described best illustrates the effect of "loss of habitat" due to an environmental change. Here's why:

1. Migration: This refers to the movement of a species from one habitat to another, usually due to changes in the environment or for the purpose of reproduction. In the scenario, there's no mention of the wildflowers moving to a new area, so this option is not the best fit.

2. Loss of Habitat: This refers to the situation where a species loses the natural environment that it needs to survive. In the scenario, the wildflowers can no longer grow in much of the soil due to the drought, which means they have lost their habitat. This makes "loss of habitat" the best fit.

3. Adaptation: This refers to the process where a species changes over time in response to changes in the environment. The scenario doesn't mention the wildflowers changing or adapting to the drought, so this option doesn't fit.

4. Extinction: This refers to the complete disappearance of a species. While the scenario mentions the wildflowers now only grow in small regions, it doesn't say that they have completely disappeared, so this option doesn't fit either.