B7-Ecology Flashcards
What is an example of abiotic factors in an ecosystem
Carbon dioxide level (for plants)
Oxygen level (for aquatic animals)
Temperature
Light intensity
What is an example of biotic factors in an ecosystem
New predators
Competition
New pathogens
Availability of food
What does a food chain show
What’s eaten by what
What is the order of a food chain
Producer
Primary consumers
Secondary consumers
Tertiary consumers
What adaptations allow organisms to survive and explain what it means
- Structural - features of an organisms body structure
- Behavioural - the way organisms behave
3.functional- things that go on inside an organisms body
What are quadrants used for
Study the distribution of small organisms
What are transects used for
Study The distribution of organisms
How does the water cycle work
1.transpiration + evaporation
- Condensation
- Precipitation
- Drains into sea and process starts again
What 4 things does pollution affect
Water
Land
Air
Plants and animals
What gases trap energy from the sun
Carbon dioxide
Methane
What are the consequences of global warming
Sea levels rising
Changes in species distribution
Changes in migration patterns
Reduction in biodiversity
What does destroying peat bogs do to the atmosphere
Adds more carbon dioxide
What do humans use lots of land for
Building
Farming
dumping waste
Quarrying
What problems does deforestation cause
Less carbon dioxide taken in
More carbon dioxide in the atmosphere
Less biodiversity
What are some programmes to protect ecosystems and biodiversity
Breeding programmes
Habitat protection
Preventing global warming
Reducing waste
How does conflicting pressures affect how biodiversity is maintained
The costs of programmes
The effect on the local economy
Protecting food security
Development of society
What do peat bogs do
Help maintain biodiversity
Give two uses of peat taken from peat bogs
Compost
Burning
Describe two ways to increase biodiversity in the uk
Plant trees
Reduce pollution
Why was the mud important during the formation of the fossil
Th mud stopped oxygen reaching the fungus
Suggest one reason why and accurate estimation of when this species of fungus existed is not known
Fossils of the fungus may have not been found yet
