Electron microscopic examination of the bacterial flora of necrotising ulcerative gingivitis indicates the presence of microorganisms within non-necrotic tissues in advance of other bacteria. The organisms involved are________?

Hydrolytic degeneration is characterised by________?

Idiosyncracy is known as to have________?

Arterial PO2 is reduced in________?

The successors of deciduous teeth develops form________?

The main function of mitochondria is________?