SB9b Energy Transfers Flashcards
1
Q
biomass?
A
mass of living tissue
2
Q
how is energy lost to the environment? 4
A
~heat
~respiration
~movement
~excreted as urine and faeces
3
Q
where does the biomass in plants originally come from?
A
~sun, trapped via photosynthesis
4
Q
what happens to energy the longer the food chain?
A
more energy is lost
5
Q
what can be used to show energy transfers?
A
sankey diagrams
6
Q
efficiency =
A
energy transferred to biomass / total energy supplied to organism
7
Q
efficiency is measured on what scale?
A
0 - 1
8
Q
pyramids of biomass?
A
used to show the biomass of all the organisms at each tropic level
9
Q
what do tropic levels show?
A
the energy flow through the biotic components of an ecosystem
