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प्रश्न
What are fossils?
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उत्तर
- Fossils are the preserved remains or traces of plants, animals and other organisms from the remote past.
- They are collected from different levels or depths of the soil structure.
- The study of fossils enables us to understand the structure, age, evolutionary process and significance of different organisms.
- Hence, fossils serve as good paleontological evidences.
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संबंधित प्रश्न
Describe how fossils provide us evidences in support of evolution.
What are fossils ?
How fossils formed ?
State any one role of fossils in the study of the process of evolution.
What are fossils? What do they tell us about the process of evolution?
Explain the importance of fossils in deciding evolutionary relationships.
What is embryology?
If the fossil of an organism is found in the deeper layers of earth, then we can predict that ______
The fossil trilobite was originally :
(a) an arthropod
(b) an invertebrate
(c) a reptile
(d) an ave
Some of the important fossils which have been studied are those of organisms X, Y and Z. X were marine arthropods which were common between 400 to 600 million years ago. Y were the invertebrate animals (molluscs) with a flat, coiled, spiral shell which lived in the sea about 180 million years ago. Z are the extinct carnivorous or herbivorous reptiles which appeared on the earth about 250 million years ago and became extinct about 65 million years ago. What are X, Y and Z?
State fossils importance in the study of evolution with the help of a suitable example.
The best way of direct dating fossils of recent origin is by ______.
Why is Archaeopteryx considered to be a connecting link?
How can you determine the age of the fossils?
