What is fossil ?...

What is fossil ?

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Fossils are any kind of remnants, models or impressions of once living, but now extinct, organisms preserved in Earth.s rocks. These fossils provide the most direct evidence of evolution by revealing the characteristics of the organisms of the past, as well as, the changes which occurred in these characteristics from time to time.

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Which of the following is living fossil ?

Abies

Ginkgo biloba

Ephedra

Taxus

Which one is considered to be a living fossil?

Horse

Prawn

Platypus

Archaeopteryx

The earlist fossils form in the phylogeny of Horse is:

Merychippus

Mesohippus

Eohippus

Equus