Many people may think that red blood cells are the same in all living things, and in fact this is not true
The shape of red blood cells varies from one organism to another.. You may find a nucleus inside the red blood cell in some organisms and not find a nucleus in others.
To make sure this is true, we have to use a microscope
If we put a record on it that contains frog blood, we will see this picture
We note the presence of a nucleus inside the red blood cell of the frog, as we note that its shape is oval and convex
Now we put a record on which there is human blood, and we will see this picture
We note the absence of a nucleus inside human red blood cells, and this greatly increases the concentration of respiratory pigments and the amount of oxygen transported
You can clearly see the circular and concave shape
It is also smaller than the red blood cells of a frog
Well, everyone will wonder where the white blood cells are
If we look closely in the microscope, we will see that the white blood cells are surrounded by a red color and you can find more than one type of white blood cells in the same record.
Thus, we know that the shape of blood cells varies from one organism to another
The functions of red blood cells may differ from one organism to another, but all of them carry oxygen and transport it to all cells of the body.
The function of white blood cells in all living things is to defend the body
The photos and the article are original
Thank you for reading