Which statement is a correct interpretation of the graph about trout, invertebra
ID: 78439 • Letter: W
Question
Which statement is a correct interpretation of the graph about trout, invertebrates, and algae? 1) If trout are present in a system, alga production is low and invertebrate population levels are also low. 2) If trout are present in a system, alga production is high and invertebrate population levels are also high. 3) If trout are present in a system, alga production is high and invertebrate population levels are low. 4) Trout do not seem to affect the alga production; only the invertebrate populations are affected. 5) Trout do affect the alga production but not the invertebrate populations.Explanation / Answer
From Graph A (left side) we can assume that the invertebrate population is significantly reduced when trout is present compared to no fish.
From Graph B (Right side) we can assume that algal population increases tremendously ( almost 4 times) in presence of trout fish compared to no fish.
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