Organ system, evolution, evolutionary change, skeletal system, digestive system, humans
Change is an inevitable part of existence. Nothing will remain the same over a lengthened time period. All living organisms are a testament to this fact. The evolution of each organism provides an even more relevant indication. Evolutionary change can be exemplified through several means. Examining the organ system of two different living organisms can demonstrate evolutionary change.
[...] Examining the organ system of two different living organisms can demonstrate evolutionary change. Organ system definition An organ system may be defined as a group of organs that cooperate to perform a function. The organ system can vary between organisms. Nevertheless, most organisms have a few organ systems in common. The skeletal system, digestive system, and muscular system are examples. These systems vary in some manners, but carry out the same basic function in each organism. Additional organ systems may include the cardiovascular system, urinary system, reproductive system, nervous system, and integumentary system. [...]
[...] (Aiello and Wheeler) This also supports a theory provided in additional scientific research. It is believed the organ assisted in breaking down raw meat and the wisdom teeth were used to chew the food. (Hawks) Nevertheless, the organ can be seen as a proponent of evolutionary change. In summary, evolutionary change is shown through the skeletal system of the manatee and the digestive system of humans. Manatees display characteristics within their skeletal system that has obviously evolved over time. Humans have also revealed elements within the digestive system that support evolutionary change. [...]
[...] There are several additional organ systems and animals that will further promote the theory of evolutionary change. Further research is encouraged to refute and substantiate evolutionary change. Works Cited Aiello, Leslie C., and Peter Wheeler. "The expensive-tissue hypothesis: the brain and the digestive system in human and primate evolution." Current anthropology (1995): 199-221. Domning, Daryl P. "Evolution of manatees: a speculative history." Journal of Paleontology (1982): 599-619. Hawks, John, et al. "Recent acceleration of human adaptive evolution."Proceedings of the National Academy of Sciences 104.52 (2007): 20753-20758. [...]
[...] (Domning) Their current skeletal system illustrates evolution. The skeletal system is a system of bones and joints that support movement. Manatees have certain features that support hind limbs. Vestigial hip sockets are the best proof that the animal has evolved over time. Additionally, the animal has a rudimentary pelvis. (Scott) Nevertheless, the manatee has no hind limbs despite these features in their skeletal system. This suggests that the fully aquatic animal evolved from a land animal that had rear limbs. [...]
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