Multiple Choice
The cyanobacteria found in the internal mucilage-filled cavities of the hornworts serve to
A) provide structural support.
B) produce carbohydrates.
C) convert atmospheric nitrogen gas into a usable nutrient form.
D) convert atmospheric carbon gas into a usable nutrient form.
E) help get rid of metabolic wastes.
Correct Answer:
Verified
Correct Answer:
Verified
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