Question

Choose the correct pair(s):

• A. Proterozoic → Origin of flowering plants
• B. Paleozoic → Origin of amphibians
• C. Mesozoic → Acme of trilobites
• D. Cenozoic → Dominance of mammals

Hint:

The Cenozoic era is known as the "Age of Mammals," as mammals became the dominant life forms after the extinction of the dinosaurs.

Answer 1

The Correct Option is B, D

Step 1: Analyzing the geological periods. 
- (A) Flowering plants originated in the Cretaceous period, which is part of the Mesozoic, not the Proterozoic. 
- (B) Amphibians evolved during the Paleozoic era, which is correct. 
- (C) Trilobites reached their peak during the Paleozoic era, particularly in the Cambrian period, not the Mesozoic. 
- (D) Mammals dominated during the Cenozoic era, particularly after the extinction of the dinosaurs. 
 

Step 2: Conclusion. 
The correct answers:  

(B) Paleozoic → Origin of amphibians

(D) Cenozoic → Dominance of mammals.