Question

what are red blood cells ​

Answer 1

Answer:

Hemoglobin is the protein inside red blood cells. It carries oxygen. Red blood cells also remove carbon dioxide from your body, transporting it to the lungs for you to exhale. Red blood cells are made in the bone marrow. They typically live for about 120 days, and then they die.....

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Answer 2

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$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \texttt{Red blood cells (RBCs), also known as} \\ \texttt{ Erythrocyte are a type of blood cell which } \\ \texttt{are made in the bone marrow. These cells contain } \\ \texttt{the protein that is called Hemoglobin. Hemoglobin } \\ \texttt{carries oxygen to the body parts from the lungs. } \\ \texttt{Red blood cells also remove carbon dioxide from } \\ \texttt{the body by transporting it to the lungs.}$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \texttt{The red blood cell lives an average of } \\ \texttt{100-120 days in human-body. In the adult} \\ \texttt{human-body, there are some 5.2 million red } \\ \texttt{blood cells per cubic millimetre of blood.}$