1.In which bones can bone marrow chiefly be found? 2.Is bone marrow made of bone tissue? 3.What is the molecular composition of hemoglobin?

1.In which bones can bone marrow chiefly be found?

2.Is bone marrow made of bone tissue?

3.What is the molecular composition of hemoglobin? Does the functionality of hemoglobin as a protein depend on its tertiary or quaternary structure?

Bone marrow can mainly be found in the internal cavities of flat bones, such as vertebrae, the ribs, the shoulder blades, the sternum and the hips.

Bone marrow is not made of bone tissue, although it is a connective tissue just like bone tissue.