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.
Biotic factors within a community can affect the populations of organisms but are also essential to the balance of life within the ecosystem. Examples of Biotic Factors: 1. Competition for food is an example of a biotic factor in an ecosystem. A red squirrel and a grey squirrel living in the same habitat will compete for the same food source. 2. Predator-prey relationships are examples of biotic factors.