Campylobacter and Helicobacter are two genera within the ________ class of Proteobacteria.
A. Alphaproteobacteria
B. Betaproteobacteria
C. Deltaproteobacteria
D. Epsilonproteobacteria
Answer:D
Campylobacter and Helicobacter are two genera within the ________ class of Proteobacteria.
A. Alphaproteobacteria B. Betaproteobacteria C. Deltaproteobacteria D. Epsilonproteobacteria