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In humans, oxygen-rich blood (from the lungs) must not mix with oxygen-poor blood (from other cells). We have 4-chambered heart to ensure there is no mixing.

However, some animals (such as alligators) have no problem letting their blood mix.

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What are the two most common blood types in the US?

The two most common blood types in the US are O positive and A positive.


What are the two types of blood that are in the heart?

The two types of blood that are in the heart are oxygen-rich blood that is pumped from the lungs to the body (systemic circulation) and oxygen-poor blood that is pumped from the body to the lungs (pulmonary circulation).


What happens when two incompatible blood cells mix and come into contact with each other?

When two incompatible blood cells mix and come into contact with each other, a reaction called agglutination occurs. This can lead to clumping of the blood cells, which can block blood vessels and cause serious health complications.


What happens when two blood types mix?

type "O" which really is zero, means that no antigens are present, it is the universal donor. anyone can take it in without difficulty. there are no antigens which would cause clotting or problems. type "AB" means that you already have both antigens, so you are the universal acceptor. any blood given to you, type A or B, won't hurt you since you already have those antigens. Type "O" has none, so that's good too. the Rh factors will further complicate things, but the ABO blood typing system is that simple. If you are a vampire, other probems might arise.


What are two types of blood vessels?

Two types of blood vessels are arteries, which carry blood away from the heart, and veins, which carry blood towards the heart. There is also a third type of vessel called a capillary which is neither artery nor vein but connects the two and is the site where oxygen, nutrients, and wastes are exchanged between the blood and the tissues.

Related Questions

Can you mix two types of antifreeze?

Not recommended.


Can two A positives have an o negative?

No, two A positive parents cannot have a child with O negative blood type. The A blood type parents can pass on either A or O alleles, but since they both have at least one A allele, any offspring would inherit A or AB blood types. The O negative blood type requires two O alleles, which is not possible with parents who both have A blood types.


Can Two o positive parents have a ab positive baby?

No, two O positive parents cannot have an AB positive baby. Inheritance of blood type follows specific patterns, and a child cannot have a blood type that is not possible based on the parents' blood types.


What are types of the blood?

There are two types of blood. Deoxygenated blood, and oxygenated blood.


Can o blood father a child with a blood type?

it is rh negative and rh positive that u dont want to mix not the a b o types it is the + or - two ++ mom n dad or two -- mom n dad not 1 positive(+) and 1 negative(-)


How do you mix only 2 items in the cooking pot on Neopets?

You cannot mix only two items.


What are the two most common blood types in the US?

The two most common blood types in the US are O positive and A positive.


Are there two blood types that people have that will not allow them to reproduce?

No, there is no limitation on people of different blood types reproducing.


What are traits of type A blood?

There are two different types of A blood types, there is the one that originated from Europe and one that originated from the Arctic. The two blood types have specific properties and each require certain foods to be healthy.


What are the two different types of blood?

white blood cells and red blood cells


What are the two types of clots that can form?

blood and mucas


What are the two types of blood that are in the heart?

The two types of blood that are in the heart are oxygen-rich blood that is pumped from the lungs to the body (systemic circulation) and oxygen-poor blood that is pumped from the body to the lungs (pulmonary circulation).