Similarities between animal cell and plant cell are both have

Animal cell and plant cell both have a nucleus, cytoplasm, mitochondria and a cell membrane.

The difference in them is that plant cell has three more extra components, a vacuole, chloroplast and a cell wall.

Hope this helps

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)]