Answer:
B
Explanation:
Matthias Jacob Schleiden was a German botanist who, with Theodor Schwann, cofounded the cell theory. In 1838 Schleiden defined the cell as the basic unit of plant structure, and a year later Schwann defined the cell as the basic unit of animal structure.
Holder you just got to get the products
<span>If you belong to the blood group 0, you have no A or B antigens on the surface of your red blood cells but you do have A and B antibodies in your blood plasma.</span>
