Which of the following represents the correct sequence of levels in ecological organization?
(a) Community - Biome - Biosphere - Ecosystem
(b) Community - Biosphere - Biome - Ecosystem
(c) Community - Ecosystem - Biome - Biosphere
(d) Community - Ecosystem - Biosphere - Biome

Question

Which of the following represents the correct sequence of levels in ecological organization?
(a) Community - Biome - Biosphere - Ecosystem
(b) Community - Biosphere - Biome - Ecosystem
(c) Community - Ecosystem - Biome - Biosphere
(d) Community - Ecosystem - Biosphere - Biome

TutorArc · Accepted Answer

In terms of levels of ecological organization, the correct order starts from smaller units to larger ones:

● Community: This refers to all the populations of different species living in a particular area and interacting with one another. It's the first step in the ecological hierarchy.

● Ecosystem: An ecosystem includes the community of living organisms (the biotic factors) as well as the non-living components (abiotic factors) such as water, soil, and climate. It represents the interaction between living organisms and their environment.

● Biome: A biome is a larger geographic area characterized by specific climate conditions and dominant vegetation. It includes several ecosystems that share similar environmental conditions and species adapted to that environment.

● Biosphere: The biosphere is the global sum of all ecosystems, encompassing all living organisms on Earth and their interactions with the atmosphere, hydrosphere, and lithosphere. It's the broadest level of ecological organization.

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