Question

Red blood cells are made in the bone marrow, and stimulated by what?

1) Liver
2) Kidney
3) Spleen
4) Yo momma

Answer 1

Red blood cells are made in the red marrow of long bones, rib bones, the skull, and vertebrae. They live for about 120 days and are then destroyed in the liver and spleen.

Step-by-step explanation:

Red blood cells are made in the red marrow of long bones, rib bones, the skull, and vertebrae. They live for about 120 days and are then destroyed in the liver and spleen. Mature red blood cells do not have a nucleus or other organelles, which allows them to have more hemoglobin and carry more oxygen.