Which of the following best describes the theory of gradualism? Biological change occurs quickly over a short period of time and is followed by
long periods of little or no change.
Tiny changes in a species add up to major changes over time.
Events throughout the history of life have caused the extinction of species.
Biological change occurs slowly and steadily over a long period of time.

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.