WHAT ARE THE EVIDENCES FOR EVOLUTION? NEET (part-1)
7.3 WHAT ARE THE EVIDENCES FOR EVOLUTION? Evidence that evolution of life forms has indeed taken place on earth has come from many quarters. Paleontological evidence . Fossils are remains of hard parts of life-forms found in rocks. father of Indian paleontology- Birbal Sahani Rocks form sediments and a cross-section of earth's crust indicates the arrangement of sediments one over the other during the long history of earth. Different-aged rock sediments contain fossils of different life-forms who probably died during the formation of the particular sediment. Some of them appear similar to modern organisms. They represent extinct organisms (e.g., Dinosaurs). Birds are the only surviving dinosaurs . A study of fossils in different sedimentary layers indicates the geological period in which they existed. The study showed that life-forms varied over time and c...
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