21. Scientists usually rely on a mathematical model in estimating radiation risk. 22. Actual mathematical models should use precise data of appropriate matching periods of study. 23. Mathematical models , such as systems biology models, are much needed here.24. Another biologist, Douglas Boucher, came up with a mathematical model of mutualistic interactions. 25. Mathematical models of collaboration are also proposed based on the interfaces.26. Newtonian fluids are the simplest mathematical models of fluids that account for viscosity. 27. Afterwards, scientific and mathematical models were developed to better understand fish. 28. Climate models are mathematical models of past, present and future climates. 29. Other mathematical models have been developed to explain aggregation dynamics and conspecific recognition. 30. The answers to these questions are suggested by the mathematical model , Perelson said.
