Multiple choice

Which of the following are the three types of bacteria that can be pathogenic?

  1. round, rod, cork-screw shaped

  2. cocci, bacilli, spirilla

  3. virus, fungi, protozoa

  4. both a & b

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

Pathogenic bacteria are classified by shape: cocci (round), bacilli (rod), and spirilla (corkscrew). Since both the descriptive names and the technical names are correct, option D is the best choice.