True or false: no matter the volume of core exercises performed, without the inclusion of healthy dietary habits, and a consistent exercise regimen, the ability to achieve the desired "six-pack" look is nearly impossible. a. true b. false

c. movement because i took the test and it lets me review my answers

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)]