5 Ecology Flashcards
Define biosphere.
Part of earth and its atmosphere in which living organisms exist
Define ecosystem
Ecological community + environment
Define habitat
Environment where an animal or plant normally lives/ grows in.
Define community
Groups of plants and animals living and INTERACTING together in a specific region
Define population
All the organisms that make up a species
Define niche
The ROLE an organism plays in its environment
What does abiotic factors mean?
Non-living factors
What does biotic factors mean?
Living factors
Define autotroph
Organisms that make their own food
Define heterotroph
Organisms that find food
eg humans
Examples of abiotic factors.
pH Temperature Topography - slope of land Water Humidity Light intensity
Food webs show what ____ what and the ____ __ ______.
Eats
Flow of energy
Examples of biotic factors.
All living factors of an ecosystem Interaction between biotic factors- Competition Disease Predator/prey Parasitism- host doesn’t gain anything
What is GPP?
The glucose produced
Units are kJmol -1
What is NPP?
Energy or biomass available to the plant
