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All of the following are possible causes of gingival recession EXCEPT one. Which one is the EXCEPTION?
Bacteria
Microscopic single-celled organisms that inhabit virtually all environments on Earth, including soil, water, and living organisms, playing critical roles in various ecosystems.
Aquatic Life Zone
Areas in water bodies, such as lakes, rivers, and oceans, that support life, including various plants, animals, and microorganisms.
Level of Organization
Describes the hierarchy in biology from the atomic and molecular scale up through cells, tissues, organs, organisms, populations, communities, ecosystems, and the biosphere.
Ecosystem
A community of interacting organisms and their physical environment, interconnected through nutrient cycles and energy flows.
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