A population of ducks lives in an area that floods many times each year. Some of the ducks are better at finding food on dry land, while other ducks are better at finding food in wet, muddy areas. Eventually, the land around the lake permanently changes from dry soil to wet, marshy mud.
Answer
A
The population will remain stable because the ducks will not be affected by this kind of change.
B
The population will eventually balance out so that there are equal numbers of both types of ducks.
C
The population will evolve so that most ducks survive no matter how they find food.
D
The population will evolve so that most ducks are better at finding food in wet, muddy areas.
Explanation
When the land becomes permanently wet and muddy, ducks that are better at finding food in those conditions are more likely to survive and reproduce. They pass on traits that help them find food in wet, muddy areas, so over generations those traits become more common. Therefore, most ducks will become better suited to finding food in wet, muddy areas.
AI-written and checked against the verified answer.