1. The lack of cell wall allows direct manipulation of the chemical environment . 2. In general, pressure and chemical environment only cause small changes to fusion ratios. 3. However, there are cases of populations locally adapted to tolerate harsh chemical environments 4. The tongue is flicked out of the mouth regularly to sample the chemical environment . 5. They are available in a variety of materials for different temperature and chemical environments . 6. :: I think it really depends on the chemical environment . 7. The caramelization reactions are also sensitive to the chemical environment . 8. These substances poison the chemical environment of surrounding cells, initiating degeneration and programmed cell death. 9. Additionally, the chemical environment of the nanoparticle plays a large role on the catalytic properties. 10. In Kagan's model, K is determined by the amount of aggregation present in the chemical environment .