Life on Earth - Biodiversity And The Distribution Of Life Flashcards
What are abiotic factors?
Abiotic factors are physical factors and include temperature and pH.
What are biotic factors?
Biotic factors are related directly to living organisms and include factors such as temperature and pH.
How can humans influence biodiversity?
Humans can influence biodiversity in ecosystems through creation of pollution, habitat destruction, and overexploitation of species.
What is a biome?
A biome is a geographical region of the planet that is characterised by its climate and contains distinctive communities of plans s (flora) and animals (fauna)
What does the occurrence of biomes depend on?
The global occurrence of biomes depends on the physical characteristics of the area, including the climatic factors of temperature and precipitation.
What is a community?
A community is all the organisms living in a habitat
What is an ecosystem?
An ecosystem is a natural biological unit composed of habitats, populations and communities.
What is grazing?
Grazing is the method of feeding on plants by herbivores.
What is a habitat?
A habitat is the place where an organism lives.
What is a niche?
A niche is the role an organism plays within its community in an ecosystem
Give three examples of biomes
Biomes on land include forests, grasslands and tundra
What is biodiversity in ecosystems affected by?
Biodiversity in ecosystems are affected by abiotic and biotic factors
