Dr Kenney counters that these molecules occur inorganically (they are found, for example, in certain sorts of meteorite).
For example, in certain tree ferns (e.g., Cyathea and Cibotium) and in the royal ferns (Osmunda), the entire stem surface is covered by masses of roots.
For example, in certain classes in the humanities or social sciences, students may be expected to complete 150 pages of reading in approximately three hours; while in other classes in the humanities or social sciences, students may need more time to move through texts that may be particularly dense or that are in another language.
In other animals the effect of the pupil may be much greater; for example, in certain geckos the slit pupil can close from a circle of several millimetres in diameter down to four pinholes each, with a diameter of 0.1 mm (0.004 inch) or less.
A number of variations in pattern of development of the female gametophyte occur in various angiosperms; for example, in certain species of evening primrose (Oenothera), the female gametophyte contains only 4 nuclei, whereas in Peperomia, as many as 16 may be present.
For example, in certain cases, petrol can remove paint.
For example, in certain ways the German multipayer model builds naturally on the American health insurance system.
For example, in certain biometric speaker verification systems the key requirement is a low false alarm rate.
Some find intrinsic value, for example, in certain "natural" environments (wildernesses untouched by human hand); some find it in certain animal species; and so on.
For example, in certain areas of the former Soviet Union where the climatic conditions are identical, walnuts trees are frozen to death in autumn in certain locations but survive autumn in other places.
