Unit 3 ecosystem Flashcards
What do arrows in a food chain represent
Direction of energy flow
How is energy in a food lost
Heat
Movement
Undigested materials
Species
A group of organisms that are able to produce fertile offspring
Biodiversity
Variety and abundance of living organisms found in a particular area
Population
Number of individuals of one species found in an area
Ecosystem
All the organisms living in a particular habitat and the non-living components with which the organisms interact
Niche
The role an organism plays within a community
E.g light
Interspecific competition
Induviduals of different species competeing for a few resources required
Intraspecific
Induviduals of the same species for all resources required
Habitat
Where an organism lives
Community
All the induviduals of all of the species in an area
Biome
A region of the planet with chrachteristic
climate. Flora and fauna
Characteristics of a niche
What the organism feeds on
What resources the organism requires
What organisms feed on
What energy does undirected wate contain
Chemical energy
