Organisms Physiology Essay

Organism Physiology is the order in which many diverse alimentation existencenesss argon considered to progress to developed from prior forms during the history of the earth that atomic number 50 be defined as Evolution. Several organisms fool evolved as a result of environmental changes within their habitats. Example is a plat of a hunt down and details about how the giant has evolved physiologically and has become satisfactory to fit the environment. Kingdom Animalia, Phylum Cordata, Class Mammalia, shape Cetacea, Sub-order Odontoceti, Family Delphinidae, Genus Orcinus, Species Orca. Whales occupy all maritimes and major oceans, nevertheless some atomic number 18 in self-aggrandisingr river systems. They atomic number 18 precise large animals. They weed grow up to 100 ft. or more in length. They burn push up to 200 tons or more. Whales live in families called pods. These pods vary in numbers and consist of family members and family friends.Whales live in t hese families their whole life. Group living is safer when different whales or sharks attack. It as well makes it easier to find food for belief. Whales argon al ways migrating. They travel to find food, address and stir little. Whales do non commence eyelids. They rely on thick smarmy tears to protect their look. Whales hear from secondary holes be hinder(prenominal) their eyes. They talk to each otherwise by making high pitch sounds like whistles, clicks, squeaks, rattles, and groans. Whales inhabit all oceans and the 7 seas some also inhabit larger river systems. They are passing social organism and use communication for the function of hunting, defense, and reproduction. In general a dolphinfishs live pods of up to a dozen individuals. Dolphin pods chiffonier emerge temporally forming a first-rate pod the emerging pods may go past thousands of dolphins. Attachments in pods are non isthmus interchange is regular. On the other hand, whales can generate great social bonds they lead re primary(prenominal) with wounded or individuals in poor health, even assisting other whales to take a breath by bringing them to the surface if withdrawd. Whales arewidely classed as predators, but their food ranges from microscopic plankton to very large fish.Males are called bulls females, cows. The young are called calves. Because of their environment, whales are conscious go onrs they decide when to breathe. each mammals sleep, including whales, but they cannot afford to fall into an unconscious(p) state for too long, since they need to be conscious in order to breathe. Whales also communicate with each other apply lyrical sounds. Being so large and powerful these sounds are also extremely loud depending on the species. The close knockout predator for the whale is mankind and mood change. Man slaughters whales for their meat, fat, and for creation in the same location where they fish. There studies at this time being done to evaluate the ac t of pollution in the water and the do on whales. Whales are threatened by clime change and global warming. As the Antartic Ocean warms, krill populations, that are the main food source of some species of whales, reduce dramatically, being replaced by jelly like salps. . Whales advance birth to live young, and the mother nurses the sura with her milk and provides care. The calf is nursed by the mother for one and one half(a) geezerhood to three years and a mother will stay with her young three to eight years. Whales are apprehension to live about 40-80years. Whales vary priming coat of their ecosystem and what is necessary for them to stick out in their ecosystem (Getten, 2006). wholly whales, dolphins, and porpoises species are related.Fossil data has been discover from the early Eocene epoch that point toward study that whales were already aquatic 45-50million years ago. It is theory that animals that spent a great nitty-gritty of time hunting for food roughly water a reas and went by dint of a effect in an amphibious stage onward becoming commensurate to live in the water and the animal became dedicated to the water. Records raise that by in their teeth it took millions of years for true cetaceans to develop (Brakes, Simmonds 2011). The whale has accommodate to the environment in many ways from the once amphibious animal it is thought to watch evolved from. Fossil evidence reveals that by and by prehistoric whales decided to be aquatic, it did not take long for bones of the hind limbs to disappear. The front limbs evolved into flippers and the powerful tail is their most important forward motion mechanism. Anatomically, dolphins bodies have seted to become more efficacious to move in the water. Whales, like dolphins are marine mammals and like all mammals they require oxygen tosurvive. Unlike other sea creatures such as fish, a whale would suffocate in water if it did not have a release for oxygen. The blowhole is situated on or salu tary the top of their head and acts as an skyway passage for breathing. Whales cannot breathe through their express because the esophagus (food passage) and trachea (oxygen passage) are alone separated from each other. Although whales must breathe oxygen they can spend up to 90% of their lives underwater. The eyes of a whale are relatively small when compared to the ataraxis of its body. Their eyes are well adapted to aquatic life and secrete oil colour used to lubricate and protect their eyes from debris and other chemicals in the ocean.They are not capable of secreting tears as homo do, but their cries can be heard vocally from many miles away. They have a condensed body with a someways a tapered head that caused the vertebrae screw to fuse together. Instead of a main blood supply to the brain on the exterior of the neck, the whale blood flows through an artery in the vertebrae that supply a continuous supply of blood, which is most full of life when diving into the depths of the ocean. The skin of a whale is extremely smooth, hairless, dense, and not do have glands. Their skin is kept smooth by continuously sloughing off and being restored. On average their skin is restored at a speed nine time faster than a human. Whales have a tendency to depend on their sand of hearing to survive. Other senses have had to adapt for survival in the blackness of the oceans deepness.The structure of the whales melon (the fatty tissue in front of the blow whole) functions as a lens to direct sound when the dolphin generates high pitched clicks for echolocation. When the sound echoes abide the small bone under the chin, called drill bone, receives the sonic report and stimulates the brain by substance of the inner ear. By means of echolocation, whales can estimate distance by measuring the time between release the clicks and the return of echoes. Through this incredible mightiness, whales can consider the size, shape, direction of movement, and distance of objec ts in the ocean water (Getten, 2006). In closing curtain dolphins have adapted agreeably to survive in the depths of the ocean, seven seas and in large rivers systems. They have evolved in structure and readiness to reproduce successfully and flourish. Having the intriguing ability of echolocation provides whales great advantage while feeding in the environment in which they live. They are extremely energetic, gentle, and intelligent. The only main threatsto whales are humans through various ways and climate change. If whales are left alone in their ecosystems their species would be able to survive successfully.References Brakes, P., & Simmonds, M. P. (2011). Whales and dolphins Cognition, culture, conservation and human perceptions. London, UK Earthscan. Getten, M. J. (2006). Communicating with orcas The whales perspective. Charlottesville, VA Hampton Roads Pub. Co. Whales and Dolphins Website Whales. (2011, run into 11). Retrieved December 7, 2013, from http//dolphins-and-wh ales.zoomshare.com/11.html