Topic: Body Transport System Subtopic: What is blood?
Where are red blood cells made?
Answer: When old ones die, new red blood cells are produced in the bone marrow, which fills the center of the large bones like shin bone.
Learn also:
- Why is transpiration important?
- What is meant by leaking of heart valves?
- What is diffusion?
- What is an artificial pacemaker?
- What is root pressure?
- Why we should not breathe through mouth?