Red blood cells are produced in the bone marrow, which is a spongy tissue found inside bones. The bone marrow is also responsible for producing white blood cells and platelets.

The red blood cells are in the

Heart

Liver

Lymph Nodes

Bone Marrow

Answer is Right!

Answer is Wrong!

The correct answer is D. Bone marrow.

Red blood cells are produced

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The heart is a muscle that pumps blood throughout the body. The liver is an organ that helps to digest food and remove toxins from the blood. Lymph nodes are small, bean-shaped organs that are part of the lymphatic system, which helps to fight infection.

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