| Abstract: | How does an organism ‘tick'? The timekeeping of biological systems Life is divided into distinct sections (for example, embryogenesis, ontogenesis, ageing), the duration of which can be described with the help of allometry and the time of which can be indicated in chronological and/or physiological units. The first of these units are defined physically and on the basis of periodic events. However, they aren't able to describe biological time in a satisfactory way. Biological clocks are based in the organismus itself on a number of different timekeepers, which indicate the same timing cycle and which are not (only) based on a periodic sequence. |
