2.2 Energy & Biomass Flashcards
(8 cards)
1
Q
1st law of thermodynamics
A
Energy can be transferred but not created or destroyed
2
Q
2nd law of thermodynamics
A
Energy transformations are inefficient- energy is lost as heat
3
Q
Photosynthesis
A
Conversation of light to chemical energy (glucose) by autotrophs
4
Q
Trophic level
A
Each stage in a food chain
5
Q
Gross productivity (GP)
A
Total gain in biomass
6
Q
Net productivity (NP)
A
Remaining biomass after losses from respiration
7
Q
Bioaccumulation
A
Pollutants build up in an organism
8
Q
Biomagnification
A
Pollutants increase across tropic levels
