This change in the populations is an example of natural selection. Red squirrels were not well adapted to the new food source (acorns), leading to a decrease in their population, while gray squirrels, being better adapted, were able to thrive and replace them.
Gray and red squirrels share the same habitat. Red squirrels usually eat hazelnuts. After a disease kills off hazelnut trees in their environment, they have to start eating acorns. Gray squirrels are well adapted to eating acorns. The number of red squirrels decreased over time because they were not well adapated to eating acorns. Gray squirrels gradually replaced the red squirrels because they are better adapted to the environment. This change in the populations is an example of(1 point)
Responses
genetic drift.
genetic drift.
resource partitioning.
resource partitioning.
competitive exclusion.
competitive exclusion.
natural selection.
1 answer