<em>For example,</em>
<em> consider a mountain whose summit is 5,000 feet (1,500 m) in elevation, but somewhere on the way up, the trail goes back down 250 feet (76 m). ... </em>
<em>If one hikes over five hills of 100 vertical feet each, the cumulative elevation gain is 5 × (100 feet (30 m)) = 500 feet (150 m).</em>
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I would say Australopithecus because so far, its skull is the one that resembles the most that of a human's.
Answer:lumbar, thoracic and cervical
Explanation:
Iliocostalis muscles is the most inferior and lateral of the erector spinae muscles.
