Which of the following statements about relationships between microorganisms is INCORRECT?单项选择题

A

Symbiotic bacteria can have an effect on the capacity of insects to spread viral pathogens

B

Arthropods can be vectors of viral pathogens in animals

C

Bacteria commonly carry viruses but they do not affect their virulence

D

Fungi can have symbiotic relationships with cyanobacteria and algae

E

Arthropods can be vectors of bacterial pathogens in plants

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