Use the following diagram from the text showing the spread of the cattle egret, Bulbulcus ibis, since its arrival in the New World, to answer the following question.

Figure 52.1
-Phytoplankton is most frequently found in which of the following zones?
A)oligotrophic
B)photic
C)benthic
D)abyssal
E)aphotic

Question

Use the following diagram from the text showing the spread of the cattle egret, Bulbulcus ibis, since its arrival in the New World, to answer the following question.
  
Figure 52.1
-Phytoplankton is most frequently found in which of the following zones?
A)oligotrophic 
B)photic 
C)benthic 
D)abyssal 
E)aphotic

Quizplus · Accepted Answer

Phytoplankton require sunlight for photosynthesis, and therefore are found in the photic zone where light penetrates the water column. The other zones listed (oligotrophic, benthic, abyssal, and aphotic) are not typically associated with high concentrations of phytoplankton.

Use the Following Diagram from the Text Showing the Spread