Examlex
The Ptolemaic model probably persisted for all these reasons EXCEPT:
Community
A group of interacting living organisms sharing a populated environment; in human contexts, it can also refer to a group of people with a common characteristic or interest.
Species Interaction
The interactions between different species within an ecosystem, which can include competition, predation, symbiosis, and mutualism, influencing the survival and reproduction of the species involved.
Precise Boundaries
Definite or exact limits or borders of an area, space, or concept.
Ecosystem
An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system through nutrient cycles and energy flows.
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