Proposal for Dissection of a Male and Female Shark
For my project that I'm doing for biology , I'm doing a dissection. I'm going to be performing my project with Trevor Johnson , Tyler McCaskill, and Tom Shudt .The dissection that we decided to do was the dissection of a male and female shark.
We are doing a dissection on a shark because we want to learn about the shark anatomy and the way the sharks organs work to keep all the water out and still eat fish while they are swimming around in the ocean.We also want to know how the sharks skin is so resistant to cancer . We also wanted to know a little bit about the shark , so maybe if we decide to go into the field of Marine Biology we would have a little more knowledge on what the jobs in that field are like .I also thought that it would be interesting to dee a shark up close and in person because we either have to go to the ocean or to an aquarium just to see a shark.
When the word Shark comes to mind most people think of a monster that feeds on humans and is an enemy of all living beings. Contrary to popular belief less than 10 percent of sharks are known to attack humans unprovoked. Sharks are classified under the class of Chondrichthyes, which is fish that have characteristics of a skeleton made of cartilage, jaws, paired fins, and paired nostrils. The superorders are divided into two groups, which are Batoidea that have rays and their relatives and Selachii, which are sharks. Scientists have found isolated spines, teeth, and scales that appeared 350 to 400 million years ago in the Devonian Period known as "Age of Fishes". Most modern sharks have evolved 100 million years ago when dinosaurs lived on earth. (Matthews, 1989) Sharks have been known to inhabit tropical and temperate seas as well as some cold and polar seas. Migration of sharks is poorly understood due to not all species migrating. And in the species that do migrate the distance may be short or long and is based on availability of the food and environmental cycles. One American biologist Eugenie Clark is the world leader in shark study, she was the first person to learn how sharks behaved in captivity and how well sharks had the ability to understand.
Every year, there are about 100 million Sharks killed, ultimately for its commercial success. Their fins are used as the main ingredient for a dish so-called Shark soup. However, many are unaware of the actual importance of Sharks' existence on Earth. They do a number of things to control and balance aquatic life down below, which in return affects how we live on the surface. Sharks have existed in our world for over 400 million years, if they were to suddenly disappear for industrial purposes, much problems will be encountered throughout the world. We must preserve the lives of Sharks, for many reasons most importantly that shark hunting is morally wrong, it may provide economic failure in a given time, and it may serve a critical unbalance of a healthy environmental state.
In Labs 22 through 26, my lab partner and I were assigned a fetal pig to perform a dissection on in order to understand anatomy, the study of an organism’s structure1, and physiology, the study of the functions and activities of a living organism2. Throughout these labs, we studied the structure of the fetal pig and performed experiments to understand four system processes: digestion, cardiovascular, respiratory, and excretory. Dissecting an organism, physically moving and seeing the different portions of the organism, especially of a fetal pig, is very important. This helps in the understanding of the skeletal structure and what series of physical and chemical processes the mammalian species body performs in order to survive.
The Brain plays a important role in our body, so in this lab we did a dissection of the sheep brain that is closer to the human brain. The steps we follow our teacher make every body couriose to learne about braine and see it structures before we remove the dura mater.We working in group lab and every body partecipation in the dissection of braine.
Sharks have also been subjected to medical research, games and competitions, jewellery, souvenirs and cosmetics. We need to take into consideration that sharks play a vital role in the natural world that we live in. it is imperative that we look after these majestic creatures and ensure they remain protected. We need to be aware of the dangers of sharks, swim in protected areas where there are shark nets, and do not swim after dark in the sea (especially not alone) as the sea is the sharks home. Humans should also be wearing wet suits as protection in the ocean. The sea is where they live, they swim freely and they eat – they do not particularly target humans but rather prey on food that is available to them in their habitat.
Have you ever wondered what the scariest shark is? I know i have. Well the scariest looking shark i know is the basking shark. The basking shark has a huge mouth and will eat you if you mess with it. These animals don't have a regular nutrient cycle they just eat what they really can. There natural biome is .The habitat
The main anatomical features of this class are as follows: cartilaginous skeleton, ampullae of lorenzini, dermal denticles, and pectoral fins (Natalia Riusech and Diego Arias, Natural History of Vertebrates). A cartilaginous skeleton, the defining feature of Chondrichtyhes, allows the fish to swim more efficiently due to the elastic nature of cartilage. However, all of the Chondrichthians must swim or else they sink due to the lack of a swim bladder (Classes Found in the Phylum Chordata). Some species within the class Chondrichthyes include the Great White Shark, Tiger Shark, Bat Ray, Mobula Ray, Eagle Ray, and the Whale
When most people hear the word "shark", the image of a vicious killing machine pops into their head. They picture something out of the movie Jaws, where a massive Great White shark terrorizes an entire beach and eats dozens of people. However, this fictional story is nothing more than Hollywood entertainment. In the real world, the tables are turned. Humans are the ones who kill sharks, and not just by the dozens. It has been estimated that over 100 million sharks are killed every year by humans (http://www.iflscience.com). Some estimates claim that the actual number of sharks killed every year could be as high as 273 million (http://www.iflscience.com). In this research paper, I will inform you of the many ways that sharks are being killed,
Shark slaughter has led to shark populations being rapidly decimated all around the globe. Fishermen report that sharks are also getting smaller because they are not being given enough time to fully mature. Although there are other fish that are targeted more than sharks, they are not exactly affected by the kind of endangerment that sharks are currently experiencin...
Specific Purpose: To persuade the audience to go online and sign a petition to help stop shark killings and to support the entire Racing Extinction cause in order to save species around the world from going extinct.
The first step to this dissection is to get your rat. Then once you have your rat you will want to put it on its back with the rats belly facing up. With belly facing up you will make a shallow cut along the midline of the rat. This cut should only be deep enough to peel back the first layer of skin with the rats hair on it. Your cut will go to the mouth to just before the genitals.
Most people think that sharks are large, fast-swimmers, and savage predators. This is true of some species and groups should be interested of the appealing aspects of biology found within it: all sharks have an excellent sense of smell; some can detect electrical discharges; some sharks give birth to one of the
Mojetta wrote about prehistoric sharks, and the history of these creatures. According to Angelo Mojetta, author of Sharks, Cladoselache genus, one of the first prehistoric sharks, was buried in sediment that kept it preserved. Unlike other sharks, Cladoselache genus had a circle of tiny plates around it’s eyes for protection against it’s victim’s attempts to fight back. These sharks lived over 400 million years ago. Sharks of the past could mostly be identified by their teeth, because shark’s bodies are made of cartilage. Another shark that was focused on was called, Stethacanthus. This shark had a very unique look. Stethacanthus had a brush like decoration on the top of it’s head, and an extra fin like part that had the same bristle like decorations on it. These characteristics were thought to be used as suction cups, to hitch rides from larger fish. One of the most famous sharks that looks like an over...
Learning the anatomy of an animal for educational purposes can create a better learning experience. Many schools of the United States today require science courses to have animal dissections to create a better understanding of basic anatomy. School children in science classes have dissected a frog or worm to see how the body structure is similar to humans. In the medical field, student nurses and doctors learn from dissecting animals first before moving on to human cadavers. Kristien Mcdonald, of The Daily Utah Chronicle comments, “we could just do research on dead bodies” (2). Even though that’s an alternative, there is a limited amount of cadavers for students to study on, so the usual alternative would be animals that are mass-produced in farms.
The morphology of whale sharks is mostly similar to aquatic fish species, but many specific traits help differentiate them from the rest. Whale sharks are the largest fish in the world and can reach a size of around 20 meters (Martins, C., and C. Knickle). This is often compared to the size of a school bus. The shark has a very large transverse mouth. They have 5 very large gill slits and have a larger first dorsal fin compared to the second one (Whale Shark). They have a distinctive spotted “checkerboard” pattern with stripes (Martins, C., and C. Knickle). It is not exactly known why they have this specific body marking. It is believed that the body markings act as a camouflage. The strange thing about whale sharks is that they have 300 rows of teeth that play no role in feeding (Martins, C., and C. Knickle).
The use of dissection in classrooms is able to expand the knowledge of students by giving them a hands-on approach to anatomy. Dissection is one topic that is highly debated among all people who question whether it’s an ethical thing to do. According to Webster’s Dictionary the definition of the word ‘ethical’ means morally right and good or pertaining to right and wrong. The line between right and wrong is often a very thin line and many people don’t know where one ends and the other begins. I believe that dissection is an ethical way to get students more involved in learning and can give students a better understanding of the anatomical and physiological make-up of a once living organism.