Test: Evolution (NCERT) - NEET MCQ

Devonian period occurred about 400 million years ago in Palaeozoic era. This period was marked by abundance of fishes and hence called as age of fishes.

Palaezoic era is the era of ancient life and correct arrangement of periods in this era is: 

The tadpole larva of frog bears gills, which proves that frogs have evolved from gilled ancestors.

The fossils can be defined as remains of impressions of the hard parts of the past life-forms in the strata of the earth. Fossils provide one of the most acceptable evidences in support of evolution, because we can study the evolutionary past of individuals in the form of their fossils. The study of fossils is known as paleontology. The evidence of evolution based on the knowledge of fossils is called paleontological evidence. Living organisms living in various ages and entombed in various starta of rocks provide concrete clues to the variety of life that existed in the past.
Age of the fossils can be determined by three methods: (i) Radioactive clock method (II) Radioactive carbon method and (iii) Potassium Organ method.

The Jurassic Period was the second section of the Mesozoic Era. It happened from 199.6 to 145.5 million years back, after the Triassic Period and going before the Cretaceous Period.

Carboniferous period of palaeozoic era is known as the age of amphibians. It existed about 350 billions years ago in which reptiles and winged insects originated and amphibians were dominant.

Correct answer is A.

Ordovician period existed about 500 million years ago and is the age of invertebrates. Carboniferous period that existed 350 million years ago is the age of amphibians.