1. Unusually, diatoms have a cell wall composed of biogenic silica. 2. Biogenic generation of methane takes place through two chemically distinguishable pathways.3. The only examples we find on Earth are all biogenic . 4. There is some evidence for a biogenic occurrence of dolomite. 5. There is a distinction between endogenous and exogenous biogenic amines. 6. MAO ) breaks down biogenic amines and prevents excessive resorption. 7. Its biogenic sediments contain a late-Devensian & Holocene pollen record. 8. Biogenic silica occurs in the structure of diatoms, radiolaria and siliceous sponges.9. However, food containing high amounts of biogenic amines may have toxicological effects. 10. Biogenic amines have been implicated as a potential cause of red wine headaches.
