Revision 2.1 Individuals, populations, communities and ecosystems: Part 1

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1
What is the biosphere?
The parts of the Earth where life is present
2
What is an individual in ecology?
A single organism capable of independent survival
3
What is a population?
Group of the same species living in a specific area at the same time
4
What is a community?
Populations of different species interacting
5
What is an ecosystem?
Compromise communities and their non-living environments functioning as a single unit
6
What is a habitat?
The natural environment where an organism lives, including the biotic and abiotic factors that support its survival
7
What is a keystone species?
Species that are crucial to the maintenance of their ecosystem
8
Identifying non-living and living species
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