Ecosystems Flashcards
1
Q
Define ecosystem
A
All the living organisms that interact with one another in a defined area
2
Q
How to work out biomass at a trophic level
A
Biomass x organisms in that trophic level
3
Q
What is the ecological efficiency?
A
The efficiency with which biomass or energy is transferred from one trophic level to the next
4
Q
Net production = gross production - respiratory losses
A
.
5
Q
Ecological efficiency = energy/biomass before the transfer ÷ after the transfer x 100
A
.
6
Q
What is a decomposer?
A
An organism that turns organic compounds into inorganic ones
7
Q
What is a detritivore?
A
Help speed up the decomposition process by feeding on dead and decaying material
