Multiple choice

Which of the following are single-celled microorganisms?

a. Viruses b. Bacteria c. Protozoa d. Fungi

  1. Only a and b

  2. Only b and d

  3. Only a and c

  4. Only a and d

  5. Only b and c

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

This is the correct option. Bacteria and protozoa are single-celled microorganisms.