Final answer:
Species without crucial traits may face extinction due to various factors like overharvesting, critical symbiotic relationships, and limited genetic diversity.
Explanation:
Extinction can occur in species that lack traits for survival or adaptation to environmental changes. Factors like overharvesting, critical symbiotic relationships, large body size, poor dispersal abilities, and low genetic diversity can contribute to a species facing extinction. Additionally, small populations, declining populations, restricted distribution ranges, and few populations increase the vulnerability of a species to extinction.
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