Which derived character is shared by lizards and wolves but not frogs? a. jaw bones b. four-legged locomotion c. amniotic eggs d. vertebral column

A. jaw bones

let me know if i was correct

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)]