The evidence for human evolution is overwhelming. This includes thousands of fossils, which show the progressive straightening of the spine, the increase in wittiness volume, and change in facial features. Humans inherited their skunk b one and only(a), a remnant of what was once a human tail, from primate ancestors. All animals retain a tail at one point in their development; in man, it is present for a period of 4 weeks, during stages 14 to 22 ofhuman embryogenesis.[2] Humans start out a non-functional third eyelid, the plica semilunaris. Humans similarly select external ear musculuss,[3] which animals use to swivel and manipulate their ears (independently of their head) to focalisation their hearing on particular sounds. Humans still have remnants of such muscles, but they are without delay feeble and now are capable only of slightly wiggling the ear.[4] deoxyribonucleic acid comparisons in any case show that humans share approximately 99% of their DNA with their closest cousin, the chimpanzee (i.e.
, there is only a 1% difference in the two DNA mappings). Evidence also includes ancestral DNA evidence ( pan DNA) that humans share with earlier ancestors. For example, humans have structures in their genetic make-up that were once used to produce enzymes (L-gulonolactone oxidase) to process vitamin C; many other animals have this functioning DNA, but at some point in human evolution a mutation disabled the gene, leaving behind its remnants as junk DNA. This particular junk DNA indicates a common crinkle with other species.[5][6]
The plantaris muscle also serves as evidence of evolution. The plantaris muscle is used by animals in gripping and manipulating objects with their feet, for example...If you want to collar a full essay, order it on our website: Ordercustompaper.com
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