When nitrogen is added to nitrogen-poor aquatic ecosystems, productivity _____ and the number of species _____.
A)increases; declines
B)increases; increases
C)declines; declines
D)declines; increases

Question

Quizplus · Accepted Answer

Adding nitrogen to nitrogen-poor aquatic ecosystems typically increases productivity because nitrogen is a limiting nutrient. However, it can lead to a decline in the number of species due to eutrophication, which can cause harmful algal blooms and reduce biodiversity.

When Nitrogen Is Added to Nitrogen-Poor Aquatic Ecosystems, Productivity _____