Final answer:
The major difference between a threatened and endangered species lies in the level of risk they face for extinction.
Explanation:
Threatened and endangered species are two categories used to classify species based on their risk of extinction. The major difference between them lies in the level of risk they face:
- Threatened species: Species that are likely to become endangered in the near future if factors affecting their survival do not improve.
- Endangered species: Species that are at significant risk of extinction if conservation efforts are not implemented to protect them
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