Christmas Tree Worm Facts

Christmas Tree Worm Facts The Christmas Tree Worm is a colorful marine worm with beautiful, spiraling plumes that resemble a fir tree. These animals can be a variety of colors, including  red, orange, yellow, blue and white. The Christmas tree shape shown in the image is the animals radioles, which can be up to about 1 1/2 inches in diameter. Each worm has two of these plumes, which are used for feeding and respiration. The rest of the worms body is in a tube in the coral, which is formed after the larval worm settles on the coral and then the coral grows around the worm.The worms  legs (parapodia) and bristles (chatae) protected within the tube are about twice as large as the portion of the worm visible above the coral.   If it worm feels threatened, it can withdraw into its tube to protect itself. Classification: Kingdom: AnimaliaPhylum: AnnelidaClass: PolychaetaSubclass: CanalipalpataOrder: SabellidaFamily: SerpulidaeGenus: Spirobranchus Habitat of the Christmas Tree Worm The Christmas tree worm lives on tropical coral reefs throughout the world, in relatively shallow waters less than 100 feet deep. They seem to prefer certain coral species.   The tubes that Christmas tree worms live in can be up to about 8 inches long and are constructed of calcium carbonate.The worm produces the tube by excreting calcium carbonate that it obtains from ingesting sand grains and other particles that contain calcium. The tube may be much longer than the  worm, which is thought to be an adaptation that allows the worm to withdraw fully into its tube when it needs protection. When the worm withdraws into the tube, it can seal it tight using a trapdoor-like structure called an operculum. This operculum is equipped with spines to fend off predators. Feeding The Christmas tree worm feeds by trapping plankton and other small particles on their plumes. Cilia then pass the food to the worms mouth. Reproduction There are male and female Christmas tree worms. They reproduce by sending eggs and sperm into the water. These gametes are created within the worms abdominal segments. Fertilized eggs develop into larvae that live as plankton for nine to 12 days and then settle on coral, where they produce a mucus tube that develops into a calcareous tube. These worms are thought to be capable of living over 40 years. Conservation Christmas tree worm populations are thought to be stable. While they arent harvested for food, they are popular with divers and underwater photographers and may be harvested for the aquarium trade. Potential threats to the worms include habitat loss, climate change and ocean acidification, which could affect their ability to build their calcareous tubes. The presence or absence of a healthy Christmas tree worm population can also indicate the health of the coral reef.   Sources De Martini, C. 2011. : Christmas Tree WormSpirobranchus sp.. Great Barrier Reef Invertebrates. University of Queensland. Accessed November 29, 2015Frazer, J. 2012. The Overlooked Joy of the Christmas Tree Worm. Scientific American. Accessed November 28, 2015.Hunte, W., Marsden, J.R. and B.E. Conlin. 1990. Habitat selection in the tropical polychaete Spirobranchus giganteus. Marine Biology 104:101-107.Kurpriyanova, E. 2015. Exploring the Diversity of Christmas Treet Worms in Indo-Pacific Coral Reefs. Australian Museum. Accessed November 28, 2015.Nishi, E. and M. Nishihira. 1996. Age-estimation of the Christmas tree worm Spirobranchus giganteus (Polychaeta, Serpulidae) living buried in the coral skeleton from the coral-growth band of the host coral. Fisheries Science 62(3):400-403.NOAA National Ocean Service. What Are Christmas Tree Worms?NOAA Encyclopedia of the Sanctuaries. Christmas Tree Worm.SeaLifeBase. (Pallas, 1766): Christmas Tree WormSpirobranchus giganteus. Accessed November 29, 2015. University of Queensland.  Great Barrier Reef Invertebrates: Spirobranchus giganteus.

Project Management Organizational Structures Paper

Project Management Organizational Structures Paper A series of related jobs that are focused toward a major solution is a project. Projects take time, money, people, and other resources to perform successfully. Project management usually controls these resources as well as planning the project and allocating resources where needed. Before a project is started, management decides which organizational structure will be used to run the project. There are three organizational structures that can be chosen from consisting of the Functional, Matrix, and Pure Project structures. Each of these has their advantages and disadvantages in structuring a project. Project managers are in charge of initiating, planning, executing, controlling and closing the project. Prior to beginning a project the manager needs to decide which organizational structure is the best fit to run the project at hand. Choosing which organizational structure to use largely depends on the size of the company, what is trying to be accomplished, and what resources are availa ble.English: Triad organizational structureThis paper will examine the three primary organizational structures mentioned above and the situation in which each structure would be the best method to manage a project team.In the functional project management organizational structure, "the project is assigned to the functional unit that has the most interest in ensuring its success or can be most helpful in implementing it" (Mantel Meredith, 2006). This organizational structure has been considerably one of the oldest methods used however, remains one of the most successful. The functional method is best used when applied to routine work functions and to support the value of work standards. Under this organizational structure projects are usually assigned into two different ways consisting of assigning a project to a functional manager who coordinates with others to contribute or assigning the project to different departments who each complete their portion of the work and report...

Recycline in Partnering with Stonyfield Farm Assignment - 7

Recycline in Partnering with Stonyfield Farm - Assignment Example It is evidently clear from the discussion that many people are nowadays very conscious of environmental conservation, and they are likely to buy anything they think will help in conserving the environment (Atkins, 67). Recycline could take advantage of this situation by marketing its toothbrushes as eco-friendly products through word of mouth. Hudson should not only target moviegoers as his main customers. There are many people out there who will buy stylish eco-friendly toothbrushes willingly. The internet is one way of reaching as many people as possible. Online marketing is not only cheap; it is also convenient (Atkins, 45). As the company grows larger, it will have to increase its customer base. This means that it will have to be very innovative in its marketing strategies so as to reach as many people as possible. The company will also have to find partners who can help in marketing its toothbrushes. This means that there will be a need for more distributors in different areas ( Atkins, 133). Such distributors may be supermarkets and other retail stores that deal with personal care products.

How to successful in my life Essay Example | Topics and Well Written Essays - 1500 words

How to successful in my life - Essay Example Majority of us have this belief that we do not truly possess control over things, over the events that occur in our lives, over our emotions, our thoughts, and that we are preys, and obviously, as preys, all we are conscious of doing or our initial instinct is protect ourselves. Since we use up all our time defending or sheltering ourselves, we are unable to picture our own identity, we forget that we have free will and we can decide for ourselves, and that we do have the power to change the direction of our lives. Realizing all of these and acting promptly based on these realizations is what I call success. I know for a fact that we are all unique in our own ways. Nobody can take your identity, your uniqueness. We have something that other people do not have. We all have our own innate talents and skills, and if we commit ourselves to these unique abilities and strive to enhance them by finding a vocation or job that we really love, success will be within reach, and we will attain happiness, contentment, and strong personal and professional relationships. This is not a belief that I have created on my own; it is a principle that all successful people who is enjoying what they do and pursuing their passion will offer you. Success does not come to those who are trapped in a job that they dislike, those merely doing what they do because they are compelled to. If you desire success, do something that you love, pursue your passion, and, eventually, you will learn new things about yourself. All of these things, good or bad, will help you towards success. These principles and values I have mentioned here are not mere hearsays. They have been proven by a number of successful people, such as Walt Disney, Michael Jordan, and Stephen Spielberg. These famous icons in their own industries have proven to the world how far passion can take you (Armstrong 10-12). They have failed so many times, persistently rejected, but they did not give up

The Black writers Essay Example for Free

The Black writers Essay Whether Racism is an issue of not in USA (also in some Western Countries), it is a flourishing business. The Black writers are aware of this fact and do not hesitate to take ‘un’due advantage of the situation. When a Black writer takes on another ‘black’ writer, the basic issue, the calamity of being a Black, is intelligently swept under the carpet or the issue will be highlighted with a thick coat of extra Black, for the purpose of competition. I remember a three-time divorcee, also a scholar in the oriental language Sanskrit, comment on the theme family. Marriage is the foundation stone for a happy family,† he said and then went on to dissect the word ‘Vivaha’ (marriage). ‘Vaha’ means to flow and ‘vi’ means harmoniously together. Therefore, the word ‘Vivaha’ means to flow together harmoniously. Two distinct individuals, two separate personalities, bred, born and brought up in different set of circumstances try to come together from that day onwards to find a common identity, a common goal, and to be precise a common all! â€Å"he said. thank for you support to the institution of marriage, the three-time divorcee that! An author, when he decides to write the novel, has the issue and theme hovering in his mind. His being an author is itself the major issue. Howsoever detached he claims to be, he can not avoid himself, from the word go to the last sentence of the novel. The next importance issue is the influence of the family, an important family member or members! Percival Everett is a Professor of literature and Head of the English Department at the University of Southern California and the author of fourteen previous novels. He is the Ellison in the novel under review. Ellison faces personal and family crises—most notably, his aged mother is fast succumbing to Alzheimer’s and he is also struggling to understand his father’s suicide seven years before. The first 10 pages of the book relate to conversation between brother and sister, brother and brother and other personal issues. This is the first indication of the firm attachment the author has for the family, or say the ‘joint family! ’ The book is an entertaining mix of serious issues clubbed with personal affection and parody. The ‘family’ thread appears and reappears in the novel in one form or the other. Everett had a strong provocation to write this novel. The badge of suffering that had been a part of the Black family not many decades ago in U. S. comes to the fore in the very first page of the book. He writes, â€Å"I have always been severely put off by any story which had its main character a writer. (To an extent it is true of this novel also! ) So, I will claim to be something else, if not instead, then in addition, and that shall be a son, a brother, a fisherman, an art lover, a woodworker. If for no other reason, I choose this last, callous-building occupation because of the shame it caused to my mother, who for years called my pickup truck a station wagon. †Ã¢â‚¬â€the familial bonds are subtly explained and given importance to! (p. 1)He novel is a parody of contemporary African-American literature. It contains excellent descriptions on authentic family/social feelings with depth and emotion. My Pafology was initially submitted to the Agent under the gangsta pseudonym Stagg R. Leigh. This one ‘wrong’ step leads to a series of comical, problematic situations later as the novel climbs the ladder of unprecedented success. Thelonius Monk Ellison, author of experimental novels, is somewhat estranged from his family because he was favored by an emotionally distant, recently deceased father. When his sister is killed, Monk returns to Washington, D. C. , to care for his mother, who is in the early stages of Alzheimers disease. ’ The graphic description as to how he tackles the family crisis, clubbed with the professional crisis, with the burden of seventeen ejection slips for his novel, which later turns out to be a monumental success, keeps the reader glued to the novel. Monks main character is an Ebonics-spouting brute with no regard for his four children or their respective mothers. Everett is an enormously talented writer, who juggles with the serious issues related to Black race and other problems faced by US with ease and makes you ponder and giggle at the same time. His wit, the mode of criticism and sarcasm are worth noting. The ideas are engaging and he has intelligently roped in the black community and the white community, his sweet-bitter comments on the US social system merit careful attention, though he says it with a hilarious authenticity.

Bad Breath - Cause, Cure and Social Impact :: Exploratory Essays Research Papers

Bad Breath - Cause, Cure and Social Impact Just admit it. We all know we have done it one time or another. It’s your big first date and you’re ready to walk out the door, but just before you can go you give yourself a quick breath test. It is the age-old practice of the cupping of the hands over the mouth followed by a quick sniff to ensure your breath doesn’t stink. Society today has boosted the business of having fresher breath. Stores are full of products offering a variety of scented mouthwashes, mints, chewing gums, and strips. With all these products out there it is hard to believe that bad breath can still have the potential of sabotaging your date. Bad breath is medically known as halitosis, and can be the result of a combination of factors. One factor is poor hygiene habits such as not brushing and flossing daily, which can cause food particles to collect in the mouth and develop into bacteria known as plaque. The bacteria can then coat the teeth and cause tooth decay and irritation to the gums (gingivitis) (Grayson, 2004, para.4). A buildup of plaque on the teeth can cause toxins to form in the mouth, and then what you thought was a persistent bad taste or a continual case of bad breath could be a warning sign of gum disease. If the disease continues without any treatment, it will lead to further damage to the gums and jawbone (Grayson). What once was just a case of bad breath could then lead to periodontal disease, so be sure to see your dentist regularly and prevent gum disease by flossing daily and brushing two to three times a day. It’s early in the morning and the first thing you do before you can come in close contact with anyone is get rid of that horrible taste in your mouth known as â€Å"morning breath.† Morning breath is caused by the lack of saliva and moisture in the mouth as you sleep and can be more of a problem for those who sleep with their mouths open. Dry mouth is a medical condition called xerostomia that can occur at anytime, not just in the mornings (Mayo Clinic, 2004, para.3). The production of salvia is crucial to help cleanse and moisten the mouth by washing away dead cells and neutralizing acids formed by plaque.

Economic role of the government Essay

Economic systems are identified by how they answer the three questions of what, how, and for whom to produce. Similarly, they are theoretical representations of economies found throughout the world that demonstrate the distribution of control between people and the government. The economic systems exist on a continuum, with command economies on one side and the free markets on the other side. The United States has a free market economy but with a notable amount of government intervention, therefore it has a mixed economy. The government acts as a provider and regulator of the United States’ mixed economy through setting legal limits and sensible policies for economic functions for the people. In the United States, decisions are made by individuals acting as participants within the market. The federal, state, and local governments, however, make laws protecting private property and regulating certain areas of business. Practiced in the United States today, capitalism would be best defined as an economic system in which individuals own the factors of production, but decide how to use them within legislated limits. Nearly identical to capitalism, the free enterprise system is another definition for the American economy. The free enterprise system emphasizes that individuals are free to own and control aspects of production, yet expands on the fact that government places legal restrictions on freedom of enterprise. Zoning regulations, child-labor laws, hazardous waste rules, and other regulations limit free enterprise to protect the anticipated entrepreneur and his or her surroundings. When such rules are established, freedom has is boundaries and is considered a privilege. Consumers in a market economy have the advantage of being able to choose among products. Contrasting to freedom of enterprise, freedom of choice applies to only the buyers, not the sellers. Although buyers are free to make choices, the market has grown into an increasingly complex place. A consumer’s choice determines the success or failure of a good or service. The profit incentive is the desire to make a profit. This motivates entrepreneurs to establish new businesses, expand existing ones, and change the kinds of goods and services produced. The government has intervened in various areas of the economy to protect buyers. From a simple requirement  for companies to place warning labels on potentially dangerous products to regulating the prices that a company may charge, the government arbitrates in company dealings to help keep all consumers relatively satisfied and secure in their purchases. One of the most important characteristics of capitalism and free enterprise is the right to private property. That is, property not owned by federal, state, or local governments, but rather held by a person or persons. The right to all property-land, business, automobiles, and whatever else the person can afford-aids in the production of wealth and prosperity for all. According to the Constitution, the government has no power to seize private property unless payment is given to the individual. What are called the rights of property are the rights to risk investment and acquire new ways of producing while learning the benefits and downfalls of ownership. Among the economic goals of Americans are economic freedom, economic security, economic stability, and economic growth. To obtain these goals, individual opinions along with government decisions must fall into equilibrium. In order to have a well-functioning enterprise system, individuals are required to take on certain economic responsibilities. Such responsibilities include attempting to rise as a successful entrepreneur and obtaining the knowledge of possible government policies while analyzing the consequences of those policies. The United States illustrates the characteristics of a mixed economy by combining freedom of choice, the desire to make profit, and the right to property with government regulations.