Note: your teacher will review your response to this question to ensure you receive proper credit for your answer. Neutrons and...
are found in the nucleus of an atom.

protons and neutrons are found in the nucleus of an atom

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]