What is the difference between a mass extinction and a regular (background) extinction?
Mass extinction involves many species over a short period of geologic time.
Mass extinction occurs over a long period of time.
Mass extinction is ongoing and is a regular process that results from evolution.
Mass extinction can be caused by ecological factors like climate change and loss of habitat.
Mass extinction events cause a significant decrease in biodiversity, while regular (background) extinctions are considered a natural part of the evolutionary process and typically do not result in a large decrease in biodiversity.
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The correct answer is:
Mass extinction involves many species over a short period of geologic time.