Pressure-density relationship. The density of liquid water tends towards an integral 6 th power relationship with respect to pressure. where P is the pressure (MPa), P 0 is 378 MPa, T is the temperature (K), T 0 is 85 K and.s the density (g/mL). This relationship is shown below (P' is the scaled pressure, that is, the left side of the above expression) as the dashed lines, with the colored lines being the experimental data. The lines for 20 Â°C - 60 Â°C fit well but the power increases from 6 at lower and higher temperatures.
Let's review. Logistic population growth occurs when the growth rate decreases as the population reaches carrying capacity. Carrying capacity is the maximum number of individuals in a population that the environment can support.f we look at a graph of a population undergoing logistic population growth, it will have a characteristic S-shaped curve. The population grows in size slowly when there are only a few individuals. Then the population grows faster when there are more individuals.
What happens if we change to a log scale. Notice how this drastically changes where the actual numbers occur - in the normal graph, the majority of the scale is taken up by the range between 50,000 and 350,000. In the log scale, these numbers occur in a very small section near the end. The log scale draws out the area where the smaller numbers occur. The above log-scaled axes still display the actual values of the weight. But log-scaled graphs are often portrayed with the values of the log labeled on the axis.