Different species are distinguished by their (1 point) O diet
O DNA
O size.
O physical appearance.

DNA

Explanation:

defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche.

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)]