Multiple choice

Which of the following bacteria are chemoautotrophs?

a. Nitrococcus b. Pseudomonas c. Thiobacillus d. Nitrobacter

  1. Only a and b

  2. Only a and c

  3. Only a and d

  4. Only b and c

  5. Only b and d

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct option. Nitrococcus and Nitrobacter are chemoautotrophs. They are nitrifying bacteria.