Distribution and biomass Flashcards
1
Q
Factors effecting distribution
A
Temperature
Rainfall
pH
Food source
2
Q
What are indicator species
A
Sensitive to air pollution
Water invertebrates - the cleaner the water the more there are
3
Q
What is biomass
A
The mass of living material in an animal or plant
4
Q
Why does biomass drop along a food chain or web
A
Not all organisms at one stage are eaten by the next
