How do bone markings on modern human skeletons relate to bone markings found on the fossils of common ancestors?

Explanation:

As with the other markings, their size and shape reflect the size of the vessels and nerves that penetrate the bone at these points. ... The surface features of bones depend on their function, location, attachment of ligaments and tendons, or the penetration of blood vessels and ner

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endo:

regulates body hormones, aldosterone, vasopressin

neural:

signal, regulates body using electric signals, reflex

endo has to do with hormones; aldosterone and vasopressin are both hormones. i also had this question and got it right : d