- Created by: Chloe
- Created on: 02-07-15 11:28
A system that includes all biotic factors in an area, as well as its abiotic factors, functioning together as a unit.
Biotic and Abiotic Factors
Biotic factors are all of the living organisms within an ecosystem. These may be plants, animals, fungi, and any other living things.
Non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.
Inter and Intra Specific Competition
A form of competition in which individuals of different species compete for the same resource in an ecosystem, (e.g. food or living space).
Members of the same species competing for limited resources.
Producers, Consumers and Decomposers
An autotrophic organism that serves as a source of food for other organisms in a food chain. Producers include green plants, which produce food through photosynthesis.
A heterotrophic organism that obtains food from feeding off other organisms.
An organism whose function involves the recycling of nutrients through the natural process of decomposition, as it feeds on dead or decaying organisms.
A position in a food chain or Ecological Pyramid occupied by a group of organisms, e.g. photosynthetic plants occupy first trophic level, herbivores on second trophic level, and carnivores on third trophic level.