Key area 3.3 - Distribution of organisms Flashcards
1
Q
Describe and give examples of abiotic and biotic factors
A
Abiotic
Non - living conditions which can influence where plants or animals live
Examples
Light intensity
Temperature
Soil moisture
PH
Biotic
Factors in the ecosystem related to living conditions
Examples
Disease
Food availability
Grazing
Predation
Competition for resources
2
Q
Define the term indicator species
A
A species by which its presence or absence indicates the level of pollution in an ecosystem
