What caused southern Sudan to rebel against northern Sudan? desire to control oil reserves

dislike of the nation’s federal system of government

fear that northern Sudan would establish an Arabic and Islamic state

need for foreign aid that northern Sudan refused to accept

its actually B forgive me for my mess up there

Explanation:

i think its c. amphipod

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)]