CBSE Class 10 Answered

Fossils help in tracing the organic evolution in following ways:-

1.  Fossils represent modes of preservation of ancient species.

2.  Fossils help in establishing evolutionary traits among organisms and their ancestors.

3. Fossils help in establishing the time period in which organisms lived.

4. Fossils provide good evidence of the structure and lifestyle of animals (and even plants) from the past.

5. They provide a record of the remains of long-extinct species.