Answer:
ABO blood group system, the classification of human blood based on the inherited properties of red blood cells (erythrocytes) as determined by the presence or absence of the antigens A and B, which are carried on the surface of the red cells.
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Answer: <em><u>1838</u></em>
Explanation: In 1838 Schwann became familiar with Matthias Schleiden's microscopic research on plants.
Answer:
Volcanic mountains form when molten rock from deep inside the Earth erupts through the crust and piles up on itself.
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Answer:
red blood cell helps on transportation of oxygen
white blood cell provide antibiodies which fight against diseases
platelets helps in blood clotting
