question 28 (1 point) which class of proteobacteria includes rickettsia, the causative agent of rocky…

question 28 (1 point) which class of proteobacteria includes rickettsia, the causative agent of rocky mountain spotted fever gamma - proteobacteria beta - proteobacteria alpha - proteobacteria delta - proteobacteria question 29 (1 point) proof that a microbe could cause disease was provided by wasserman pasteur koch lister semmelweis

question 28 (1 point) which class of proteobacteria includes rickettsia, the causative agent of rocky mountain spotted fever gamma - proteobacteria beta - proteobacteria alpha - proteobacteria delta - proteobacteria question 29 (1 point) proof that a microbe could cause disease was provided by wasserman pasteur koch lister semmelweis

Answer

Brief Explanations:

For Question 28, Rickettsia belongs to the class Alpha - proteobacteria among Proteobacteria. For Question 29, Robert Koch provided proof that a microbe could cause disease through Koch's postulates.

Answer:

Question 28: C. Alpha - proteobacteria Question 29: C. Koch