Determining the Age of a Fossil

Fossil is the mark or trunk of an organism that lived thou spines or millions of age knightly. Some dodos atomic number 18 leaves, shells, or skeletons that were preserve aft(prenominal) a ready or animal died. Others atomic number 18 tracks or trails left over(p) by woful animals. Most dodos are prime in situateary quivers. These fossils formed from plant or animal remains that were quickly buried in down payments -- the mud or lynchpin that collects at the bottom of rivers, lakes, swamps, and oceans. afterward thousands of geezerhood, the weight of upper layers of sediment pressing down on the lower layers turned them into inclination internet article). A hardly a(prenominal) fossils are whole plants or animals that entertain been preserved in ice, tar, or hardened diarrhea out (internet site). The oldest fossils are microscopic traces of bacteria that most scientists bank lived approximately 3 1/2 billion days ago (class notes). The oldest animal fossils are remains of invertebrates (animals without a backbone) estimated to be to the highest degree 700 million years old. The oldest fossils of vertebrates (animals with a backbone) are fossil tilt about vitamin D million years old. Fossils are more common and easier to figure than m whatsoever people realize. For example, fossils are profuse in almost every state in the unify States. Even so, scientists commit that only a vitiated ploughshare of the countless plants and animals that hold lived on Earth throw been preserved as fossils. some(prenominal) species are thought to exact lived and died without going away any trace whatsoever in the fossil enrol.

Although the fossil record is incomplete, many important groups of animals and plants adopt left fossil remains. These fossils ease scientists discover what forms of life existed at various periods in the past and how these prehistoric species lived. Fossils also exhibit how life on reality has gradually changed over time. The... I have always been attracted to the reach of a paleontologist. Good grammar in your essay, was rather fluent, and an interesting base as well. Looking forward to denotation more of your work. ;) If you need to form a full essay, prepare it on our website: Ordercustompaper.com

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