Ecosystems exam questions.

Question 1

Describe the characteristics of one named ecosystem.

Answer 1

Heathlands:

• Approximately 95,000 hectares of heathland.
• Located in lowland areas of UK.
• Some sites marshy, some places dry and sandy.

Question 2

Explain two local factors that control ecosystem distribution.

Answer 2

Temperature:
- temperatures are lower at higher latitudes.
- Boreal forests are much colder than tropical rainforests.
- Growing seasons are longer in warmer locations;.
Precipitation:
- The global circulation system influences precipitation.
- Desert areas have low precipitation due to descending dry air.

Question 3

State two goods provided by a rainforest.

Answer 3

• Source of food.

- Diverse range of plant species.

Question 4

Define abiotic.

Answer 4

Abiotic means non-living resources.

Question 5

Define biotic.

Answer 5

Biotic means living resources.