I think they are called Sutural. Intra sutural bones also known as the wormian bones are extra bone pieces that occur within a suture (a joint) in the cranium. They are irregular isolated bones that appears in addition to the usual centers of ossification of the cranium and they are not rare bone despite being unusual.
Density is measured in mass per volume thus C would be the answer.
2.17 g / cm³
Answer:
the cell cycle allows multicellular organisms to grow and divide a single-celled organism to reproduce
The main 3 parts are the magma , the central vent and a crater