4.7.2.4 Impact of Environmental Change (biology only) (HT only) Flashcards
1
Q
What does environmental change affect?
A
environmental change affects the distribution of species in an ecosystem
2
Q
What are some environmental changes that can affect the distribution of species in an ecosystem?
A
- temperature
- water availability
- composition of atmospheric gases
3
Q
How can temperature affect the distribution of species in an ecosystem?
A
climate change may lead to insects migrating to places in the world which are becoming hotter
4
Q
How can water availability affect the distribution of species in an ecosystem?
A
populations will migrate to find water
5
Q
How can composition of atmospheric gases affect the distribution of species in an ecosystem?
A
- certain pollutants can affect the distribution of organisms
- e.g. lichen cannot grow where sulphur dioxide is present
6
Q
What may environmental changes be caused by?
A
- seasonal
- geographic
- caused by human interaction
