Question Detail

BIO 101 Last Min Prep Objective Question

Question

The period of widespread extinction is: a. cenozoic b. precambrian c. mesozoic d. palaeozoic
Options
A cenozoic
B precambrian
C mesozoic
Correct Answer
D palaeozoic
Correct Answer

Option C is the correct answer.

Detailed Explanation

While there were major extinctions at the end of the Paleozoic (Permian extinction), the most famous 'period of widespread extinction' often referred to is the end of the Mesozoic Era (specifically the Cretaceous Period) when the dinosaurs and many other life forms went extinct.

Hint

The end of this era is marked by a mass extinction event, likely caused by an asteroid impact.

Question Info