Ecology Definitions Question Study And Accurate Verified Answers.

Ecology - correct answer The study of the interactions between living organisms and between organisms and their environment. Ecosystem - correct answer A community and its abiotic conditions. Population - correct answer A group of organisms of the same species living in a certain area at a certain time. Habitat - correct answer The environment in which a species normally lives or the location of a living organism. Species - correct answer A number of organisms which can interbreed to produce fertile offspring. Niche - correct answer The role an organism plays in its community. Trophic level - correct answer The place of an organism in a food chain or web. Autotroph - correct answer An organism which makes its own food using inorganic sources of carbon. Heterotroph - correct answer An organism which requires pre-formed organic molecules, which ingests organic material. Producer - correct answer The first trophic level in a food chain which provides the energy for subsequent levels. Consumer - correct answer An organism which gets its nutrients and energy by ingesting other organisms or parts of them. Community - correct answer A group of interacting populations in a certain area. Detritivore - correct answer An animal that consumes decomposing organic particles getting its nutrients primarily from microbes on these particles. Saprotroph - correct answer Organism that feeds by secreting digestive enzymes onto its food source and absorbing the products of digestion. Carrying capacity - correct answer Maximum average/biomass of organisms that can be sustained by an area in the long term. Random sample - correct answer A sampling method used to ensure that every individual in a studied area has an equal chance of being observed. Evolution - correct answer The process of cumulative change of heritable characteristics of a population. Herbivory - correct answer A form of interaction where a primary consumer feeds upon a producer. Predation - correct answer A form of interaction where a consumer feeds upon another consumer. Parasitism - correct answer A form of interaction where an organism lives in or in a host and obtains food from it. The host is always harmed. Competition - correct answer A form of interaction where two species compete if the amount one species uses reduces the amount available to the other. Mutualism - correct answer A form of interaction where members of different species live in a close relationship from which both benefit. Fundamental niche - correct answer The full potential range of the physical, chemical, and biological factors a species can use if there is no competition from other species. Realized niche - correct answer The part of its fundamental niche that a species actually occupies.