A population of squirrels found in the Midwestern United States looks nearly identical to a population of squirrels found in Canada. The two groups exhibit similar behaviors but have different diets. Describe an experiment that would determine whether they are the same species. Be sure your answer explains how data would need to be collected and analyzed to form a conclusion.

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Which best describes an adaptation that could be found in a fish that lives in a slow-flowing stream? the ability to attract prey by glowingextra gills, for oxygen extractionthe ability to grow largerextra fat, for warmth

How does upwelling affect coastal fisheries? upwelling damages nutrient supplies at coastal fisheries as the warm, nutrient-rich surface water is replaced by nutrient-poor, cold water. upwelling damages nutrient supplies at coastal fisheries as the cold, nutrient-rich surface water is replaced by nutrient-poor, warm water. upwelling improves the nutrient supply at coastal fisheries as the warm, nutrient-rich surface water replaces the nutrient-poor, cold water. upwelling improves the nutrient supply at coastal fisheries as cold, nutrient-rich water replaces the warm, nutrient-poor surface water.