Answer:
As a cell grows in size, the surface area gets bigger, but the volume gets bigger faster. Thinking about this as a ratio (division), the volume is the denominator and the surface area is the numerator. If the volume is getting very big, then the ratio itself will be getting very small.
Radiation
The fire radiates heat and the human body absorbs said heat.
Eliptical (oval shaped), rather than Circular.
