Multiple Choice
What is the likely outcome when a keystone species is removed from a community?
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51. Community Ecology
Introduction to Community Ecology
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In the hierarchy of biological organization, which level is defined as a community?
A
A group of populations of different species interacting in an area
B
A group of ecosystems interacting in a region
C
A group of individuals of the same species living in an area
D
A single organism
Verified step by step guidance1
Understand the hierarchy of biological organization, which includes levels such as organism, population, community, ecosystem, and biosphere.
Define each level: An organism is a single individual; a population is a group of individuals of the same species living in an area; a community is a group of populations of different species interacting in an area; an ecosystem includes the community plus the physical environment; and the biosphere is the global sum of all ecosystems.
Identify the level described as 'a group of populations of different species interacting in an area.'
Recognize that this description matches the definition of a 'community' in biological terms.
Conclude that in the hierarchy of biological organization, a 'community' is defined as a group of populations of different species interacting in an area.
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