U3 Key Area 1- Ecosystem Flashcards
Biodiversity
The variety and relative abundance of living organisms
Ecosystem
An ecosystem consist of all the organisms living in a particular area and the non-living parts with which the organisms interact
What is an ecosystem make up of? (2)
- Habitat
- Community
Habitat
A place where the organisms lives.
Population
The number of organisms of on species living in a particular habitat.
Community
All of the organisms (of different species) living in a particular habitat.
Species
A group of organisms that can interbred to produce fertile offspring
Niche
The role of an organism plays within a community
Food Chain
Energy relationships between organisms
Producer
Organisms capable of making its own food
Consumer
Organisms which obtains food by eating
What is a biotic factor?
A biotic factor is any living component that affects another organism and biodiversity
What is an abiotic factor?
An abiotic factor is any non-living component that affects an organism and biodiversity
Give examples of an abiotic factor? (3)
- pH
- temperature
- light intensity
Give examples of a biotic factor. (3)
- amount of grazing
- competition for food
- disease
