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In the evolution of vertebrates, which feature allows for the development of vertebral column?
Internal Structures
The organization or arrangement of the parts inside a system, body, or object.
Ecosystem
A community of living organisms in conjunction with the nonliving components of their environment, interacting as a system.
Interacting Organisms
Living entities that engage in relationships with one another within an ecosystem, such as competition, predation, symbiosis, and parasitism.
Chemical Factors
Elements and compounds that influence reactions and processes in biological and environmental systems.
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