4. where are red blood cells produced?\na. lymphatic vessels\nb. heart chambers\nc. red bone marrow\nd…

4. where are red blood cells produced?\na. lymphatic vessels\nb. heart chambers\nc. red bone marrow\nd. yellow bone marrow

4. where are red blood cells produced?\na. lymphatic vessels\nb. heart chambers\nc. red bone marrow\nd. yellow bone marrow

Answer

Brief Explanations:

Red blood cells are produced in red bone marrow. Lymphatic vessels are part of the lymphatic system, heart chambers are for blood - pumping, and yellow bone marrow is mainly for fat storage and not red blood cell production.

Answer:

C. Red bone marrow