The Evolution of Life

116 views 2 pages ~ 326 words
Get a Custom Essay Writer Just For You!

Experts in this subject field are ready to write an original essay following your instructions to the dot!

Hire a Writer

Vertebrates are an essential form of life of which the majority are characterised by the presence of a backbone in addition to evolving from a frequent ancestor. “Their origin has been a subject of extreme debate since the formative years of evolutionary research. It has, however, been established with years of lookup that terrestrial vertebrates emerged from fish in the Late Devonian period. An important note in this regard is that the first acknowledged fossils of vertebrates (not necessarily terrestrial) date back to the early Cambrian period. This is considered as one of the most significant events in evolution, and it was associated with rapid diversification. After the emergence, the early vertebrate forms continued to evolve with the differentiation of the ancestors of modern forms such as mammals, amphibians, reptiles, and birds by the mid- to Late Carboniferous (Carroll, 2001).

With over 99 percent of all living vertebrates falling under the subgroup of jawed vertebrates, a look at the inherent characteristics of this subgroup could highlight the impact of the emergence of vertebrates on the development of life. Salient features such as “teeth, jaws, a mineralized internal skeleton, a backbone, trunk, and appendages” (Donoghue & Purnell, 2009) are characteristic of these life forms. Vertebrates were essentially an improved life form which is especially the case when compared to invertebrate relatives. Features such as “distinct anatomical head with a distinct brain, paired sensory organs, and a variety of specialized cell types” (Donoghue & Purnell, 2009) are indicative of a more sophisticated life form. The mentioned characteristics enabled life forms to interact better with not only their surroundings but also other life forms.

References

Carroll, R.L. (2001). The origin and early radiation of terrestrial vertebrates. Journal of Paleontology, 75(6): 1202-1213.

Donoghue, P.C.J., & Purnell, M.A. (2009). The evolutionary emergence of vertebrates from among their spineless relatives. Evo Edu Outreach, 2: 204-212.

Kouchinsky, A., Bengtson S., Runnegar, B., Skovsted, C., Steiner, M., & Vendrasco, M. (2012). Chronology of early Cambrian biomineralization. Geol. Mag., 149(2): 221-251.

July 24, 2021
Category:

Science Education

Subcategory:

Biology Learning

Subject area:

Evolution Research

Number of pages

2

Number of words

326

Downloads:

51

Writer #

Rate:

5

Expertise Research
Verified writer

LuckyStrike has helped me with my English and grammar as I asked him for editing and proofreading tasks. When I need professional fixing of my papers, I contact my writer. A great writer who will make your writing perfect.

Hire Writer

This sample could have been used by your fellow student... Get your own unique essay on any topic and submit it by the deadline.

Eliminate the stress of Research and Writing!

Hire one of our experts to create a completely original paper even in 3 hours!

Hire a Pro

Similar Categories