Define evolution. How does it occur? Explain how fossils provide evidences in support of evolution?
Evolution is the sequence of gradual changes which take place in the primitive organisms over millions of years through which new species are produced.
Evolution occurs due to continued mutation of natural selection.
The remains of dead animals or plants that lived in the remote past are known as fossils .
Fossils provide missing links about the relationship of species , revealing who evolved from whom. They provide information about prehistoric organisms.