define evolution?how does it occur? describe how fossils provide us evidences in support of evolution?
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the process by which different kinds of living organism are believed to have developed from earlier forms during the history of the earth
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♡ Evolution is the process of change from simple life forms to complex life forms by gradual change. It is generating diversity and shaping the diversity.
♡ It occurs over the course of time and generations by variation, speciation, natural selection, genetic drift etc. Fossils are preserved traces of living organisms.
♡ It helps us to find the intermediate forms in between two classes etc. For example fossils of archaeopteryx helps us to know better about the intermediate form between reptiles and aves.
♡ It tells about the extinct species through the fossil or their retained body impressions.
♡ It helps us to know the evolutionary relationships.
♡ This also shows the line of development from primitive to complex organisms.
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