calorifier (kÉËlÉrÉªËfaÉªÉ). 1  a water tank fitted with a coil, or coils, that can be heated in order to heat the water â â  The pressurised water supply is cold only: a calorifier is available at extra cost. Usage examples. 2  Trends. 3  a water tank fitted with a coil, or coils, that can be heated in order to heat the water â â  The pressurised water supply is cold only: a calorifier is available at extra cost.
In ecology, a population consists of all the organisms of a particular species living in a given area. For instance, we could say that a population of humans lives in New York City, and that another population of humans lives in Gross.
In genetics, what does the term population mean? Give examples of how a population of squirrels might change over the course of many generations A population is a group of interbreeding individuals. Let's consider a squirrel population in a forested area. Over the course of many generations, several things could happen to this population. A forest fire, for example, could dramatically decrease the number of individuals and thereby cause a bottleneck. This would decrease the genetic diversity of the population.