False, It will basically be a carbon sink. Taking in more than it produces.
B - Because an active cell can only work if it has a 3-Dimension structure.
This question is unfortunately incomplete. However, the general skull features of <em>H</em><span><em>omo heidelbergensis </em></span>include large brow ridges, a broad, sloping forehead and a rear skull wall that is vertical rather than rounded or sloping.
Sphenoid bone spans the width of the cranial floor; keystone of the cranium <span>because its central wedge articulates with every other cranial bone </span>
Because it makes it easier for the air to flow through our bodies.