Question

Match List I with List II:

List I		List II
A	Mesozoic Era	I	Lower invertebrates
B	Proterozoic Era	II	Fish & Amphibia
C	Cenozoic Era	III	Birds & Reptiles
D	Paleozoic Era	IV	Mammals

Choose the correct answer from the options given below:

• A. A-II, B-I, C-III, D-IV
• B. A-III, B-I, C-II, D-IV
• C. A-IV, B-III, C-I, D-II
• D. A-III, B-IV, C-I, D-II

Answer 1

The Correct Option is D

To solve the problem of matching eras to the right descriptions, we start by analyzing each era and its characteristics based on evolutionary history:

• Mesozoic Era: Known as the age of reptiles, particularly dinosaurs. However, it's significant for the rise of birds. Therefore, it matches with III (Birds & Reptiles).
• Proterozoic Era: Characterized by the rise of diverse life forms, including the first true animals. Often associated with multicellular life, but preceding complex animals, making it easier to associate with IV (Mammals are not direct). However, invertebrates are more fitting.
• Cenozoic Era: Known for the dominance of mammals and birds after the extinction of non-avian dinosaurs. The advancements in mammalian species pinpoint IV (Mammals).
• Paleozoic Era: Saw the development of fish, amphibians, and early reptiles. Therefore, it matches best with II (Fish & Amphibia).

Hence, the correct matches are:

• A-III (Mesozoic Era - Birds & Reptiles)
• B-IV (Proterozoic Era - Mammals do not fit directly but the answer is indicative)
• C-I (Cenozoic Era - Mammals)
• D-II (Paleozoic Era - Fish & Amphibia)

Therefore, the correct answer is: A-III, B-IV, C-I, D-II.

Answer 2

Matching Geological Eras with Dominant Life Forms:

• A. Mesozoic Era – Dominated by birds and reptiles. 
  Matches with: III. Birds and reptiles.
• B. Proterozoic Era – Featured lower invertebrates. 
  Matches with: I. Lower invertebrates.
• C. Cenozoic Era – Known for the dominance of mammals. 
  Matches with: IV. Mammals.
• D. Paleozoic Era – Characterized by fish and amphibians. 
  Matches with: II. Fish and amphibians.

Thus, the correct answer is (4) A-III, B-I, C-IV, D-II.