<em>Blood typing is done so you can safely donate your blood or receive a blood transfusion. It is also done to see if you have a substance called Rh factor on the surface of your red blood cells. Your blood type is based on whether or not certain proteins are on your red blood cells. These proteins are called antigens.</em>
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I would go for C. Accuracy is the best one if you have the right information then your numbers should be right
Answer:
Option B
Explanation:
In the book The Descent of Man published in 1871, Charles Darwin mentioned that the two recent most ancestor of present day human being live in Africa. These two recent ancestors of human beings are—chimpanzees and gorillas
Hence, option B is correct
Answer:
The Continental Drift theory is a theory because there is no evidence to support it. Alfred Wegener developed the Continental Drift theory in the 1800's.
Answer: Hydrophilic
Explanation:
They have a negatively charged polar head
