Consider a bean plant growing in a "Three Sisters" garden. The bean's stem twines up on corn plants, and its roots are shaded by squash plant leaves. The bean's roots have nodules with nitrogen-fixing bacteria, and a close association with mycorrhizal fungi in the soil. The bean flowers are pollinated by bees, and the seeds may be dispersed by rodents. Which species would be considered to comprise the bean's holobiont? Choose all that apply.

A. Bean
B. Bee
C. Corn
D. Nitrogen-fixing bacteria
E. Rodents
F. Mycorrhizal fungi
G. Squash


Answer: F

Biology & Microbiology

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