The vertebrate body (and to a lesser extent, head) are segmented, so answer the following:
a. Define segmentation.
b. Describe the segmental arrangement of the embryonic paraxial mesoderm, and its relationship to adult mesodermal derivatives.
c. Discuss the relationship between one of these adult mesodermal derivatives and a derivative from another embryonic germ layer.
This questions comes from Comparative Vertebral Anatomy, so if needed then refer to different vertebral taxa.