Multiple choice

The living organisms having a single cell are known as

  1. bacteria

  2. virus

  3. unicellular

  4. protozoa

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

Unicellular refers to organisms that consist of a single cell, such as bacteria, protozoa, and some algae. Viruses are not considered living organisms as they cannot reproduce independently without a host cell.