Which statements about cell sizes are correct?

(1) An ostrich egg is 1,500 times the size of a human egg cell

(2) A human egg cell is 14 times the size of a human red blood cell

(3) Neurons can reach over a meter in length

Explanation

Despite enormous variety, most cells tend to be quite small. Here is a size comparison:

Cell / Structure	Relative Size
Small single-celled microorganism	Smallest
Human red blood cell	~35× a microorganism
Human egg cell	14× a red blood cell
Ostrich egg	1,500× a human egg cell

Neurons are the longest cells and can exceed one meter in length.