What are fossils ?

Solution

Fossils. are remains of hard parts of life forms found in rocks. The remnants or impressions of living organisms from the remote past may be regarded as fossils. Fossil formation involve the burial of dead organism. Layer after layer of sediment is laid above the dead organism. It is only on this account that the oldest fossils are found in the deepest layers of the earth's surface while the fossils of recent origin are found in the upper layers. Thus by examining the various layers of earth from the deepest to the most superficial strata for fossil record, the story of life in correct historical sequence can be known.

Some More Questions From Evolution Chapter

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Evolution

What are fossils ?

Some More Questions From Evolution Chapter

What is meant by the term fossil ?

What is the type of evolution in which the same structure developed along different directions due to adaptations to different needs ?

Name the different eras of geologic time scale.

What is single step large mutation?

Consider a thorn in Bougainvillea and a tendril in cucurbita. Are these two organs homologous or analogous ? Give reason.

Give two examples that represent adaptive radiation.

Which theory attempts to explain to us the origin of universe?

Evolution is a discontinuous process. Is it correct ?

Give the three key factors of the modern concept of evolution.

Which other term can be used for natural selection ?

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