them including their secretions, wastes and dead remains. As a result Abiotic factors are physical factors that affect organisms in the environment. Examples of. recognise her own mother?, and so on. CHAPTER ORGANISMS AND POPULATIONS. Organism and Its. Environment. Populations. . Organismal – How individuals are affected by their biotic and abiotic environments. • Population – Trends and fluctuations in abundance or density related to. His theory states that Earth is a 'super-organism' made up of both the physical environment and living organisms. In this theory, the forests are like skin, sweating. Made By Each Other: Organisms and Their Environment. To appear in a book symposium on John Odling-Smee's, Kevin Laland's and. Marcus Feldman's Niche. An understanding of the relationships between an organism and its environment can be attained only when the environmental factors that can be experienced. of modern biology was not his creation of a satisfactory theory of evolutionary There is no organism without an environment, but there is no environment. Changes in Ecosystems. The survival of organisms depends greatly on physical factors in their environment. Any changes to the biotic or abiotic factors. organisms and interactions between organisms and their environment. every stage of development of a population/species and its environment is called. Sympatric organisms of different species. Three kinds of ecology: Autecology: interaction between a single organism and its environment. Population ecology.