They are red, due to their iron content.
red blood cells are red and white blood cells are white
Red blood cells. They give red colour to your blood.
Most blood cells are red, because the red cells are the most numerous blood cells.
hey them skiny colour is white only..but blood cells are red
Because it also contains red blood cells
They are red due to presence of haemoglobin.
Haemoglobin
Because it contains no red blood cells.
clear
The red color of blood is due to red blood cells, also known as erythrocytes. These cells contain a protein called hemoglobin, which binds to oxygen and gives blood its characteristic red hue.
You do not have red blood cells in the plasma. Plasma means blood minus red blood cells. So you see the original yellowish colour in case of the blood plasma.
Why it's red blood cells of course. Blood is made of red blood cells floating in water. They are very easy to spot (if you have a microscope).here's an article on wikipedia about red blood cells http://en.wikipedia.org/wiki/Red_blood_cell