Essay
Use the following to answer questions :
Refer to the graph below showing the grass abundance in plots with and without the presence of kangaroo rats between 1931 and 1945 at the Santa Rita Experimental Range in southern Arizona. 
-If we assume that the presence of the grasses increases rat reproductive rates,what term would best describe the interaction between rats and grasses in 1945? Why?
Correct Answer:
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Mutualism.The presence of rats...View Answer
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Correct Answer:
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