Pan represents the genus while paniscus represents the species.
The amount of atomic mass between them
Independent of the conditions of the outside of the cell
I wish i knew the answer to this.
Mortality, or death rate is a measure of the number of deaths in a particular population, scaled to the size of that population, per unit of the time. In this case a factor that would result to an increased mortality rate in a population due to increased competition of water will be the density-dependent factor.