What would you compare red blood cells to? why? a house
a school
the human body
a city
a car

Explanation:

On a peripheral blood smear, normal RBCs are disc-shaped with a pale-staining central area called the central pallor. When judging red cell size on a blood smear, the classic rule of thumb is to compare them to the nucleus of a small normal lymphocyte. The normal lymphocyte nucleus has an approximate diameter of 8 µm.

sex cells are usually half's then they find another half and make a fertilize egg