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What can an indicator species' presence, absence or abundance reveal?
A
- Freshwater shrimps
- Stonefly nymphs
B
Other factors may have prevented infection.
C
Other environmental factors may determine the species' distribution.
D
The habitat's pollution level or environmental conditions.
Card 1 of 22
9.3.5 Indicator species and pollution Flashcards
22 flashcards on Edexcel GCSE Biology 9.3.5 Indicator species and pollution: the key terms, definitions and processes you need to recall for Paper 1 and Paper 2.