Organism Physiology Essay Example for Free

Organism Physiology EssayIntroductionThis paper will clearly display a diagram of an organism of the students choice. This organism will display all of the main structures of the primary organs by labeling. C beful research will exhibit the concepts of natural selection and adaptation. Selected organism will address the proper concepts that apply. Three physiological adaptions were investigated by the student. Upon conclusion of the students investigation, knowledge will grant the understanding of how physiological adaptions depart the selected organism to thrive in its bionomic niche. The organism that was selected for this essay is the Fish. External AnatomyThis diagram below was provided and reproduced with the kind consent of WWW.FLORIDA FISHERIES.COM. Florida Fisheries has developed and provided the illustration of the impertinent detail breakdown of a giantmouth bass tip as shown belowExplanation of why nuisance species like the Fish share an make up importance to the economy and to ecology. Fish evolution and adaption process has produced many species that are a great contribution to mankind in many aspects.INTERNAL course in that location are many variations of search who are defined as animals. Fish represents the most common living vertebrates. Currently, there are an estimation of at least 25,000 species of seek who are living today and this number is growing. The cold-blooded fish have a backbone and fins. Inaddition, fish breathe with an airway named gills. Fish have skin however, on top of the skin is scales. There are some fish who do not have scales as catfish who only have skin. Fish are able to steer, stop, move, maintain their position and stop by using their fins. The location of these fins vary in antithetic fish. As for the scales on fish they vary as well. Amazingly all fish have a slimy mucus covering that protect fish for obtaining infections.Fish are referred to as aquatic vertebrates and they have appendages which have gone through the adapted process over a set time vagabond for the purpose of swimming. Mastering their domain which is water have gained the attention of many scientist. Fish come in various sizes and colors and have hearty appetites which substantiates their might consume a large variety of foods.Evolution and Adaption ProcessThere are many different species of fish. The first fish were vertebrates which were labeled as Ostracoderms. These fish were evident during the Cambrian Period approximately 510 million years ago. These vertebrates became extinct when the Devonian period ended 350 million years ago. One of the distinct character traits of these fish were jawless and their primary home was always in fresh water. Another distinct trait was their size which measured less than 30 cm (1foot long). Their outside appearance as a bony scales covering the entire body of the fish. Osteichtyes are a ground level of bony fish that exist about 20,000. This class of fish which has a hi story of more than 410 million years include tuna, eels and many other varieties of bony fish. These fish ceased to exist when a class of large humongous fish like the Sharks, Whales, and Placoderms arrived on the scene.Evolution has proven for these fish to exist their lungs increased allowing these fish to develop a swim bladder. This evolution process allowed these fish to float in the water no matter how high the water is. In addition, this evolution became very evident in the fish lungs. There are many categories however the three major for bony fish are lung, ray-fins, and lobed. Their existence depends on the type of water that they stand up in. When these fish live in fresh water the oxygen level must have at least ninety percent. Their physiological characteristics of these fish gills is to strategic conduct a gas exchange where these fish maneuver water across their blood vessels. This fish gills are a very important physical traitwhich is cover by opercula. This part of the fish looks like large plates. Digestive, and circulatory systems of these fish operate with a heart that has only two chambers.ConclusionFish are a proven great contribution to all of mankind. Their evolution has proven to be very successful for a proven source for all of mankind. Gaining a greater understanding of their past to present will establish boundaries to protect their ongoing evolution. Some of the concepts of adaption and concepts of natural selection of how these fish thrive in its ecological niche have been addressed.Reference1. WWW.FLORIDA FISHERIES.COM2. www.lookd.com/fish/evolution.html