Why the study of fossils is an important aspect of the study of evolution?
Answer:
(1) Fossils offer palaeontological evidence for the evolutionary process.
(2) Due to some natural calamities the organisms get buried during ancient times.
(3) The impressions and remnants of such organisms remain preserved underground. The hot lava also traps some organisms or their impressions. All such formations form fossils.
(4) Study of fossils helps the researcher to understand the characteristics of the organisms that existed in the. past.
(5) Carbon dating method also helps in finding out the exact age of the fossil. According to the structure of the earth’s crust, the fossils are obtained at specific depths.
(6) The oldest ones are obtained at the depth while the relatively recent ones occupy the upper surface. Thus fossils of invertebrates were seen in the very old Palaeozoic era. Later were seen fossils of Pisces, Amphibia and Reptilia. The Mesozoic era was dominated by reptiles while the Cenozoic era showed the presence of mammals.
(7) In this way, the study of fossils unfolds the evolutionary secrets.
Answer:
(1) Fossils offer palaeontological evidence for the evolutionary process.
(2) Due to some natural calamities the organisms get buried during ancient times.
(3) The impressions and remnants of such organisms remain preserved underground. The hot lava also traps some organisms or their impressions. All such formations form fossils.
(4) Study of fossils helps the researcher to understand the characteristics of the organisms that existed in the. past.
(5) Carbon dating method also helps in finding out the exact age of the fossil. According to the structure of the earth’s crust, the fossils are obtained at specific depths.
(6) The oldest ones are obtained at the depth while the relatively recent ones occupy the upper surface. Thus fossils of invertebrates were seen in the very old Palaeozoic era. Later were seen fossils of Pisces, Amphibia and Reptilia. The Mesozoic era was dominated by reptiles while the Cenozoic era showed the presence of mammals.
(7) In this way, the study of fossils unfolds the evolutionary secrets.
