Question

Which of the following statement(s) is/are correct?
I. Unicellular organisms are incapable of independent existence.
II. Unicellular organisms cannot perform the essential functions of life.
III. Anything less than a complete structure of a cell does not ensure independent living.
IV. Cell is the fundamental structural and functional unit of all living organisms.

• A. II and III
• B. I and II
• C. IV and II
• D. III and IV

Answer 1

The correct option is D III and IV

Cell is the fundamental structural and functional unit of all living organisms. That means anything less than a complete structure of a cell does not ensure independent living. All organisms are composed of cells. Some are composed of a single cell and are called unicellular organisms. So, unicellular organisms are capable of independent existence and can perform all the essential functions of life.