Multiple Choice
An association between two Antarctic microorganisms is pictured below. It provides an interaction that supplies ________, made by the ________, to the ________. 
A) amino acids; diatom; bacterium
B) fixed nitrogen; diatom; bacterium
C) fixed nitrogen; bacterium; diatom
D) vitamin B12; diatom; bacterium
E) vitamin B12; bacterium; diatom
Correct Answer:
Verified
Correct Answer:
Verified
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