Question

One of the following can be used as an illustration to demonstrate continuing process of evolution in animals

• A. Extinction of some animals like Cheetah
• B. Occurrence of tadpole stage in the development of frog
• C. Presence of egg laying mammals in Australia
• D. Increasing incidence of DDT-resistant mosquitoes

Answer 1

Answer: (B)

Occurrence of tadpole stage in the development of frog

There are many similarities between the tadpole and the fish, e.g., presence of gills, finned tail, etc. On the basis of this, it is assumed that amphibians have gradually evolved from Pisces. This demonstrates the continuing process of evolution in animals.