Living organisms share certain characteristics of life. two living organisms, a pine tree and a sea urchin, are pictured below. which statement describes a difference in one of the characteristics of life shared by these organisms?

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)]