Final answer:
Types of extinctions encompass global extinction, commercial extinction, and anthropogenic extinction.
Explanation:
In the context of extinctions, types of extinctions include global extinction, commercial extinction, and anthropogenic extinction. Global extinction refers to the complete disappearance of a species worldwide, while commercial extinction occurs when a species is no longer economically viable and exploited. Anthropogenic extinctions are caused by human activities, contributing significantly to the current biodiversity crisis.
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