Fossile (Oct 13)

Explanation

1 Fossiles are useful in reconstructiong the phylogeny of organisms phylogeny is the evolutionary history and thus studying the fossile helps in understanding the evolution pattern
2 Observing fossile helps in understanding the structrue of extinct animals palenontology thus is a tool to study various body forms and their evolution
3 From the fossile one could understand the habit of extinct organisms
4 From the fossile record the connecting links between different groups could be understood
5 By studying fossiles in the earth crust the evolutoinary changes in the organisms have been traced out