Question

Approximately how many cells are present in the body of an adult person?

• A. ${10}^{14}$
• B. ${10}^{15}$
• C. ${10}^{18}$
• D. ${10}^{21}$

Answer 1

The correct option is A ${10}^{14}$

An adult human being has approximately 100 000 billion cells, all originating from a single cell, the fertilized egg cell.

So, the correct answer is option A