Ecosystems Questions Flashcards
State two characteristics of tundra ecosystems.
One characteristic is that there is little sunlight.
Another is that there is also little rain.
Which one of the following is where large scale desert ecosystems are not found?
Central South America.
Compare the climate graphs for the tropical and boreal forest ecosystems.
Temperatures for the tropical forest graph are above 26 degrees each year and rise to a maximum of 27.5 degrees in October. However, temperatures in boreal forest only reach above freezing between May and August.
Name one local factor that affects ecosystems.
Altitude Differences.
State the correct layer of the Earth where life exists.
The biosphere.
Identify two building materials provided by the biosphere.
Straw and timber.
State two characteristics of moorlands.
- Found in upland areas.
- Peat bogs and rough grassland.
Which two of the following are characteristics of wetlands?
Waterlogged soils and low in nutrients.
State the type of weathering that occurs in tropical rainforests.
Chemical weathering.
Explain why this type of weathering occurs.
It occurs because of warm and moist conditions.
Explain the contribution made by humans to the functioning of the tropical rainforests.
Humans contribute due to indigenous tribes that hunt animals for food, carry out small-scale farming and spread seeds.
Identify which one of the following is not an animal adaptation for living in a tropical rainforest.
Strong limbs.
Define the term biodiversity.
Biodiversity is the vary in animal and plant life in a habitat.
State two goods provided by tropical rainforests.
Diverse range of plant species and timber for manufacturing.
Explain why resource extraction is causing the deforestation of tropical rainforests.
It is causing deforestation because they have to extract resources that they need such as timber and minerals.
State two resources provided by the biosphere.
Fuel and food.
Explain why marine ecosystems are important to the UK as a resource.
- Tourism.
- Energy.
- Fishing.
Compare abiotic components and abiotic components of the tropical rainforest.
Biotic:
- living parts of the ecosystem such as indigenous tribes.
Abiotic:
- Non-living parts of the ecosystem.
Suggest one reason why tropical rainforests have high levels of biodiversity.
- It is the most productive ecosystem on Earth.
- Hot, wet climate all year.
State one example of a service provided by tropical rainforests.
- Acts as a carbon store.
Explain why resource extraction is causing the deforestation of tropical rainforests.
Population pressure, agriculture and the need for resources.
Explain one reason why tropical rainforests require sustainable management.
- It consists of one third of the planet’s remaining tropical rainforest.
State one characteristic of deciduous woodlands.
- They have abiotic and biotic components.
Suggest one way animals living in deciduous woodlands are adapted to their environment.
- Birds migrate away from the UK to warmer conditions.
- Squirrels store food, burying it in spring and summer to use in winter.
Explain how climate change presents a threat to deciduous woodlands.
Structure: Rising temperatures and drier conditions increase the risk of forest fires.
Functioning: Increased periods of drought could threaten the survival of deciduous woodland trees because they become more vulnerable to diseases.
Biodiversity: Milder winters could mean pests could survive in warmer conditions, causing a rise in disease that could put vulnerable species in danger.
Explain two causes of deforestation in deciduous woodlands.
- Population growth.
- Timber extraction.
