Respuesta :
Mosasaurs were large marine reptiles that resembled a cross between a crocodile and a giant iguana. Completely dying out of these can be the illustration of extinction.
What is extinction?
Extinction is the dying out of a particular species. Extinction has an important role in evolution as it opens opportunities for emerging of new species.
The mosasaurs have completely died out after a big asteroid impact caused Earth to drastically change. This can illustrate extinction.
Thus, the correct answer is extinction.
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