A newborn baby has approximately 26 billion cells in their body. To find out how many cells an adult has, we can use the information that an adult has about 1.9 x 103 times as many cells as a newborn.
First, we need to calculate the number of cells in an adult:
- Number of cells in a newborn: 26,000,000,000
- Factor comparing adult to newborn: 1.9 x 103 = 1,900
- Now multiply the number of newborn cells by this factor:
- 26,000,000,000 x 1,900 = 49,400,000,000,000
So, an adult has approximately 49.4 trillion cells. This large number of cells is a testament to the growth and development that occurs from infancy to adulthood.