Researchers Grew Two Plants of Different Species (Plant 1 and Plant

Multiple Choice

Researchers grew two plants of different species (plant 1 and plant 2) and added the same mychorrhizal species to the soil. They then measured the growth of each plant after one month. Plant 1 grew significantly more than plant 2. Which of the following conclusions is most consistent with these results?

A) both plants formed mutualistic relationships with the mycorrhizal fungi
B) neither of the plants formed mutualistic relationships with the mycorrhizal fungi
C) plant 2 formed a mutualistic relationship with the mycorrhizal fungi and plant 1 did not
D) plant 1 formed a mutualistic relationship with the mycorrhizal fungi and plant 2 did not