These words are important because they are all major points of chapters 50 to 55. The environment of any organism includes abiotic components which are nonliving chemical and physical factors and biotic components which are living organisms. Biogeography is the study of the past and present distribution of individual species and this is important because it relates to ecology and the biosphere. a population is a group of individuals of the same species living in a particular area which is the community. The different zones and biomes are also very important because they are major types of ecosystems.