Question

how are red blood cells are formed and what happens to existing one.....​

Answer 1

Explanation:

Red blood cells are formed in the red bone marrow of bones. Stem cells in the red bone marrow called hemocytoblasts give rise to all of the formed elements in blood. If a hemocytoblast commits to becoming a cell called a proerythroblast, it will develop into a new red blood cell.

Answer 2

Answer:

RED BLOOD CELLS ARE FORMED INSIDE THE BONE MARROW

THE LIFE SPAN OF A RBC IS 120 DAYS

AFTER THAT THEY DIE AND IT'S PRESENT IN SPLEEN{GRAVEYARD OF RBC}

Explanation:

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