Examlex
A startle reflex occurs in response to ____.
Great Dying
An event at the end of the Permian period, about 252 million years ago, where there was a massive extinction of species.
Meteorite Impact
The collision of a meteorite with the Earth, creating craters and sometimes affecting climate and biological evolution.
Sea Bottom
The lowest part of a sea or ocean, consisting of sediment and the underlying bedrock.
Time Period
A length of time during which a sequence of events occurs, often used to identify historical or geological eras.
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