Question

The Devonian Period is Considered to be as-
a) Age of fishes
b) Age of reptiles
c) Age of amphibians
d) Age of mammals

Answer 1

As we know that, biology is the science of life forms and living processes. The living world comprises an amazing diversity of living organisms. They have been on earth from ages. The history of life forms and their growth is studied under the category called evolution. Evolution is a concept where all life forms are categorized according to their days on earth, determining how old they are. Different animals have different ages.

Complete answer:
Each animal we are observing has evolved from some kind of species known as ancestors and their period has been categorized into different names.
a) Age of fishes- age of fishes is marked as Devonian period which has occurred about four hundred million years ago. This period was considered as the abundance of fishes and hence it was called the age of fishes. The Devonian period was anyway an interval time of the Paleozoic era that follows the Silurian period.
So, option A is correct.
b) age of reptiles- reptiles are considered to be the evolution from animals like dinosaurs. Dinosaurs dominated the Mesozoic era hence it can be also called the age of reptiles. The dominance of dinosaurs came to an end of the cretaceous era. Reptiles like- snakes, lizards. Lizards started losing their legs and they evolved into snakes. It is one of the largest histories of the world- the Mesozoic era.
So, option B is incorrect.
c) Age of amphibians- the age of amphibians is called the Permian, Pennsylvanian and Mississippian collectively. As the amphibians dominated the earth at that point of time.
So, option C is incorrect.
d) Age of mammals- mammals period is known as Cenozoic era as the land of mammals. It is the most recent of the three subdivisions of animal history as they are the largest land animals seen at that time.
So, option D is incorrect.

Option A is the correct answer.

Note:
As we discussed the evolution and evolutionary concepts, each animal holds a specific age or period from which they have been born or came into life. There have been different theories and experiments on what compound and organism first seen on earth by various scientists. In earlier days it was the survival of the fittest among the animals.