3. Identify the reptilian organisms present in the phylogeny and mark them with a star. Would these organisms be considered a monophyletic group

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)]

answer increasing the intensity, duration,and frequency of exercise progressively;