Populations in Ecosystems- Ecosystems Flashcards
What is a habitat?
The place where an organism lives
What is a population?
All the organisms of one species in a habitat
What is a community?
Populations of different species in a habitat make up a community
What is an ecosystem?
A community, plus all the non-living conditions in the area in which it lives
What are abiotic conditions?
The non-living feature of the ecosystem such as temperature and availability of water
What are biotic conditions?
The living features of the ecosystem such as the presence of predators and food
What is niche?
The role of a species within a habitat
What is an adaptation?
A feature that members of a species that increases their chances of survival and reproduction
What does the niche a species occupies within its habitat include?
Biotic interactions and abiotic interactions
How many species can occupy a niche?
One species, every species has its own unique niche
What will happen if two species try to occupy the same niche?
They will compete with each other and one species will be more successful, until only one species is left
What are the three things adaptations can be?
Physiological, behavioural or anatomical
What is natural selection?
Organisms with better adaptations are more likely to survive, reproduce and pass on the alleles for their adaptations
