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Is the clotting of blood an example of positive or negative feedback?
Blood pressure would decrease
Aldosterone is both responsible for absorption of sodium and excretion of potassium. If it is regulated by the level of potassium in blood, then we have negative feedback as high levels of aldosterone causes a decrease in potassium level in blood. If it is regulated by the level of sodium in blood, the story is just the opposite and we have positive feedback. -my own conclusion from several researches-
Negative blood can be given to someone with positive blood. Positive blood CANNOT be given to someone with negative blood.
There is no blood type OE. There are 8 different blood types, A positive and negative, B positive and negative, O positive and negative, and AB positive and negative.
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No, an O Positive person cannot donate to an A Negative person because the person who is Negative, or Rh Negative, will react to the Positive (Rh Positive) blood. Negative can only get Negative, Positive can get Positive or Negative.
Human blood has a protein (rH). If you have rH in your blood you have positive blood type, if you are lacking rH you have a negative blood type. Negative blood rejects positive blood because it is lacking the chemical, however positive blood can accept both negative or positive blood.
CAN TWO POSITIVE BLOOD TYPES MAKE a negative blood type
No. The Rh Negative blood group is formed by an absence of the Positive factor.
B positive or negative or, O positive or negative.
No. Rh negative is a recessive gene. Positive people do not carry it.