Life on Earth- Topic 1 Flashcards
What is a Abiotic factor?
Non-living factor that can affect the distribution of organisms
What is biodiversity?
The variety of living things on Earth
What is a biotic factor?
Living factors that can affect the distribution of organisms
Examples of abiotic factors
Light intensity
Moisture level
pH
Temperature
Examples of biotic factors
Predators
Disease
Food
Grazing
What is a biome?
A biome is a large region of the earth characterised by
Climate
Flora
Fauna
Examples of biomes
Tropical rainforest
Desert
Arctic tundra
What is a ecological niche?
The role that an organism plays in the community
What is a population?
The total number of one species
What is the habitat?
A place where the organisms live
What is the community?
The total number of living things in a ecosystem
What is a ecosystem?
Environment and all living and non living components
In which ways is biodiversity affected by humans?
Air+water pollution Overfishing Deforestation Endangered species Desertification
