The coelacanth is an amazing creature full of mystery and exciting discoveries. It was once thought to be extinct for more than360 milllion years ago until one was caught in1938.Its scientific name is Latimeria chalumnae .An adult coelacanth can grow at least to 180 cm in length and weigh 98 kg and each fish has
a distinctive pattern of pinkish white blotches that enables scientists to separate one individual from another.
The coelacanth has several very recognizable anatomical features.The skull is in two parts with an intra
cranial joint which lets it go an up and down movement between them. A strong pair of muscles beneath the
skull-base lowers the front half of the skull, giving the coelacanth a powerful bite .The eyes and olfactory
organs are in the front part of the skull, and tiny brain and inner ear are in the rear.In the middle of the
snout is a large pit filled with a jelly-like sac that opens to the outside through three pores.This sac is called
the rostral organ .It may be used to detect weak electric currents and help the coelacanth to find hidden
prey.
The fins
Coelacanths belong to a group of bony lobe-finned fishes and have 8 fins (2 dorsals, 2 pectorals, 2 pelvics, 1
anal and 1 caudal). The first dorsal fin of the coelacanth is much like that of other fishes and can be folded
down or erected. The other fins have a well-developed, muscular, limb-like basal lobe projecting from the body
wall, and a fringe of unbranched rays like a fan attached to the outer end of the base. The fleshy scale -
covered lobe can be bent or rotated so that each fin can work like a paddle or sculling oar. The tailhas three
divisions: a characteristic small projecting middle lobe between the longer upper and lower lobes of the fin.
The skeleton
Most of the skeleton is made of cartilage. In place of the vertebral column, a large notochord extends from
the skull to the tip of the caudal fin. The notochord is a thick-walled cartilaginous tube filled with oil-like fluid
which is under slight pressure; it is tough and elastic and does the job of a backbone, since no complete
vertebrae are developed around it.
The scales
The body is covered with hard scales with small toothy-like growths called denticles on the outer surface which
protect the coelacanth from the rocks and predators.
The swimbladder
Cloning is a very controversial subject, even though most people don't know enough about it to make an informed decision. First, I will define cloning, and tell you the process of cloning. Then, I will touch base on cloning animals cloning and the bad effects of it .Lastly, I will explain the some different religious view on cloning and what my personal opinion is on cloning. Although people think cloning is just a copy, cloning is actually more complexed than just a copy, but in my personal opinion
Cloning and Mind Zombies Cloning, is it the thing of the future? Or is it a start of a new generation? To some, cloning could give back a life. A life of fun, happiness, and freedom. For others it could mean destruction, evil, or power. Throughout this paper, you the reader, should get a better concept of cloning, it's ethics, the pro's and con's, and the concerns it has brought up. You will hear the good of what cloning can do and the bad that comes with the good. Most of the information
Cause Fear for the Future There has been a lot of discussion between the benefits and negatives about cloning. As the year’s progress, and the technology advances, there aren’t many flaws in the idea. People may think that cloning is a bad thing, because it hurts animals, or it hurts the cells of humans, but it’s rather positive, because of the things we learn from it. The main idea of cloning is to research the effect on humans, and how it affects our bodily functions. As time goes on, more and
Cloning - Stronger, Smarter, and More Perfect Humans A few years ago if you were to ask someone about the possibilities of cloning they would most likely say it was impossible. This attitude towards cloning has been held into belief up until recently when scientists in Scotland cloned a sheep. And immediately after scientists in Oregon cloned a monkey (Fackelmann 276). The most major breakthroughs of the century in science has occurred and we are not ready for
you about human cloning and to persuade you to see the other side of human cloning, the good and or ethical side. Pr: First I will be talking about what is human cloning and what “ethical” means, then the medical benefits, and lastly the scientific research and possibilities. Transition: First, the meaning of human cloning and “ethical”. Body: (Main point 1): There is many types of cloning and different sides of “ethical.” (Sub Point 1) One of the types of cloning is human cloning which is a living
Pohlonski 1st Hour A world of cloning Cloning use to be a thing of pure science fiction. Ever since the first successful clone, Dolly the sheep, was created by Dr. Ian Wilmut, scientists have been working on different techniques to clone animals and even humans. Scientist have developed several methods recently to clone animals. Harvesting Cells, Tissues, and Organs for cloning or later use advances scientists way to save lives and create the perfect baby. Cloning can be used in medicine, the revival
Cloning Madness Cloning, a topic that has recently caused mayhem all over the world, is possible, but will it be here to stay? The astonishing news that scientists had cloned a sheep a couple of years ago sent people into panic at the thought that humans might be next. "Cloning is a radical challenge to the most fundamental laws of biology, so it's not unreasonable to be concerned that it might threaten human society and dignity" (Macklin 64). Since most of the opposition is coming from the
Cloning involves the process of producing a cell, tissue, or even a complete organism from a single cell. The DNA sequence is replicated from the original biological unit. There are two types of cloning, natural and somatic cell transfer. Cloning of plants or bacteria is natural. Plants have been duplicated for many years by replicating itself and growing. Bacteria are cloned through the process of mitosis, division of a single cell. Somatic cell transfer cloning is completed when cells are
themselves as creations or copies? Would cloning undermine the conception of a human being’s individuality? (Medicines’ Brave New World) Those are two of the most questioned aspects of human cloning. Everyone always wants to be their own person and have their own thought, basically, be as original as they can be. How original can you get when there’s someone out there thinking, doing, and looking exactly like you? Not very original, if you ask me. Human cloning, cloning of any kind, has been looked at as
as Nimrat Grewal. I am composing this letter to examine the issues about cloning mostly focusing on Human cloning as well as talking a little bit about Animal cloning. Cloning is a form of reproduction in which offspring result not from the chance union of egg and sperm (sexual reproduction) but from the deliberate replication of the genetic makeup of another single individual (asexual reproduction) (“Issue…”). Human cloning, therefore, is the asexual production of a new human organism that is, at
Is the cost of a life worth that of a loved one? Human cloning is a topic that has existed since the 1970’s when Dr. John Gurdon cloned a frog. From cloning a frog in 1970 to cloning a sheep in 1997, the technological advances in cloning have exponentially increased. The concept of human cloning is to retrieve the DNA of a human and place it into the embryo of a woman and the child born 9 months later would be a replica of the original person. This technique would be useful if a person need plasma
of the issue involving cloning pets. Some believe that the cloning of man’s best friend is an acceptable practice and some think that it is not. The piece is written by scientist and professor Robert Matson and answers the questions for those who have ever wondered what it would be like to resurrect a beloved pet. Those who believe cloning should be allowed have two main arguments. As Matson puts it, “ And you certainly don’t want a dog like Scruff. You want Scruff.” Cloning is used because kids want
Cloning Today A clone is a group of organisms that are genetically identical. Most clones result from asexual reproduction, a process in which a new organism develops from only one parent. The one process of cloning, called nuclear transfer, replaces the nucleus of an immature egg with a nucleus from another cell. Most of the work with clones is done from cultures. An embryo has about thirty or forty usable cells but a culture features an almost endless supply. When the nucleus has
The Ethics of Cloning Regardless of what our future holds, it will be based on the decisions we make today. Those decisions can be made using the Utilitarian Theory which states that we are doing good for the greatest number of people. Using Rule Utilitarianism "which maintains that a behavioral code or rule is morally right if the consequences of adopting that rule are more favorable than unfavorable to everyone. (IEP)" is justifably noted that if a consensus is formed on the basis of rules
Consequences of Cloning Automatically when people talk about human cloning that tend to be negative. Most reaction is people shouldn't play god or interfere with nature. Of course there are negative consequences that could come from cloning. On the other hand there is so many positive things that could save more lives than it would cost. Yes Cloning involves risky techniques that could result in premature babies and some deaths. That is why public policy needs to be changed on cloning. The medical