The Charactertic Coral and Mussels Have in Common

The term sessile refers to an organism that is anchored to a substrate and cannot move about freely. For example, a sessile alga that lives on a rock (its substrate). Another example is a barnacle that lives on the bottom of a ship. Mussels and coral polyps are also examples of sessile organisms. Coral is sessile by creating its own substrate to grow from.  The blue mussel,  on the other hand, attaches to a substrate like a dock or a rock via its byssal threads. Sessile Stages Some animals, like jellyfish, start their lives as sessile polyps in the early stages of development before becoming mobile, while sponges are mobile during their larval stage before they become sessile at maturity.   Due to the fact that they dont move on their own, sessile organisms have low metabolic rates and can exist on small amounts of food.  Sessile organisms are known to clump together which improves reproduction.   Sessile Research Pharmacological researchers are looking into some of the potent chemicals that are produced by marine sessile invertebrates. One of the reasons for that the organisms produce the chemicals is to protect themselves from predators due to the fact that they are stationary. Another reason is they may use the chemicals is to prevent themselves against disease-causing organisms.  Ã‚   The Great Barrier Reef The Great Barrier Reef was built by sessile organisms. The reef consists of over 2,900 individual reefs and covers an area of over 133,000 miles. Its the largest structure built by living organisms in the world!

Cattle Ranching in the Brazilian Amazon Essay - 2243 Words

Summary This policy memo addresses the development and expansion of the cattle ranching industry in Brazil, which has contributed to the mass deforestation of the Brazilian Amazon in the last 40 years. It exposes the regional and global consequences to deforestation and provides strategies for the Brazilian government to sustainably manage cattle ranching industries while protecting the future of the Amazon. The rainforest ecosystem is an immense reserve of natural recourses that is far more valuable than the beef produced on Brazilian cattle ranches. Not only does the rainforest create habitat for up to 65% of the world’s biodiversity, but when harvested sustainably, it provides humans with an abundance of spices, foods, oils, medicines†¦show more content†¦(Fearnside). SUDAM was a major direct and indirect force in the conversion of the rainforest to pastureland. It provided incentives directly to ranchers but also built new roads and highways to attract new investors (Pa ncheco). â€Å"SUDAM invested about a billion dollars in corporate ranches by 1978† (Pancheco). Yet, because of the low yield standard of Brazilian cattle ranches, many SUDAM supported ranches were either taken over or partially abandoned by the 1980’s (Pancheco). The low yields of Brazilian cattle ranches can be attributed to the soil and climate of the converted pastureland. The â€Å"high temperatures and heavy rains of the rain forest wash nutrients from the soil making it very thin† (NASA Lindsey). After slash and burn techniques are used to clear the forest, flooding and erosion sets in making it even less viable (NASA Lindsey). The converted forest is highly unsuited for many agricultural activities, including ranching. This leads to low yields and an overall lower economic gain for ranchers (Economist). Despite its expansion, cattle ranches are actually a low income and unfavorable market for Brazilians (ECONOMIST). In fact, many Brazilian ranchers do not make a viable profit from beef sales but rather, are involved in timber sales, money laundering, tax evasion, and other corruption crimes to earn a living (Fearnside). On the contrary, many law abiding Brazilians use their pastureland for animalShow MoreRelatedDeforestation O f The Amazon Rainforest833 Words   |  4 Pages David Alas ENF 111 11/01/15 The Deforestation of the Amazon Rainforest I. Introduction A. The Amazon Rainforest is one of the most important natural features of our planet, crucial to our way of life. However, what Godfrey (1990) described as â€Å"one of the world’s last great settlement frontiers† is severely under threat. B. According to some experts, during the past 40 years close to 20 % of the Amazon rainforest has been destroyed. Furthermore, it has been suggested that this figure could beRead MoreDeforestation of The Amazon Rainforest945 Words   |  4 Pagesfifth-largest economy doesn’t seem to care. A recent article featured on usatoday.com states that the destruction of the Amazon rainforest rose 28% from August 2012 to July 2013 after 4 straight years of decline (Sibaja, 2013). I’m sure this may surprise some people because of the widespread concern of global warming and the affect it may have on future generations, but I don’t think the Brazilian government cares or is going to care unless another global superpower (France, Germany, China, United Kingdom,Read MoreWe Must Save the Brazilian Rainforest Essay2783 Words   |  12 Pages   Ã‚  Ã‚   The Brazilian Rainforest is one of the most unique, vast, and diverse regions of the world. To get a general idea of the diversity of the Rainforest, it makes up a total of one-third of the world forests (more than four million square kilometers), it contains half of the total number of named species in the world (eighty-thousand plant species, 1,500 fish species, and one-forth of the 8,600 bird species), and is the world largest holder of genes (Library 138-139). To say the least, the BrazilianRead MoreKayapo Way of Life1006 Words   |  5 PagesThe Kayapo Indians live in the Amazon River Basin of Brazil with villages along the Xingu River. Vanderbilt reports that their population in 2003 was 7,096. They inhabit over 28.4 million acres of the Amazonian Rainforest. This land was received formally via land reserves from Brazil in the 1980’s and 1990’s. The land is mostly tropical rainforest and grassland. The Kayapo live in balance with their natural ec osystem. The indigenous people hunt, fish, and practice slash and burn agricultureRead MoreBrazil : The Red Wood Of South America1624 Words   |  7 Pagespopulation. Deforestation, an outcome of human action has affected the millions of exotic species that live in one of the treasures of Brazil, the Amazon Rainforest. The arrival of the Europeans on Brazilian soil affected Brazil’s history. The Line of Demarcation, a demonstration of the Pope’s power had opened the path of Portuguese influence among Brazilians. Pope Alexander VI drew the Line of Demarcation on March 4, 1493, a line that divided land between Portugal and Spain. With the Pope’s approvalRead MoreDeforestation in the Amazon Rainforest Essay2143 Words   |  9 PagesProblems can arise when one group pursues its own interests to the detriment of others. Deforestation in the Amazon has led to conflicting interests in the Amazon region. Potentially it can affect societies worldwide through global warming. In this assignment, I will agree or disagree with the following hypothesis: Deforestation in the Amazon benefits some people at the moment. It also causes problems for other people, both in Brazil and the rest of the Read MoreDeforestation as a Global Issue Essay1448 Words   |  6 PagesHypothesis:Deforestation is a global issue, not just one countrys problem. I have been asked to write an assignment on the effects and causes of the deforestation-taking place in the Amazon rainforest. During this assignment I shall investigate the following topics:  · Why has deforestation taken place in the Amazon rainforest?  · Can the government of Brazilsolve this major  · Before and after destruction issue?  · What are the developments in the rainforest?  · What areRead MoreEssay on The Impacts of Deforestation in the Tropical Rainforest1038 Words   |  5 Pagesforests provide habitat for an estimated half of the worlds plant and animal species, provide water and fuel for much of the worlds population, and influence regional and global climate. Commercial logging, clearance for agriculture, ranching, and fuel gathering are all responsible for the destruction. Solutions include the development of alternative fuel wood supplies through fuel wood plantations, the regulation of logging, and a consensus as to the value of forest conservationRead MoreThe Issues Surrounding The Amazon Rainforest1206 Words   |  5 Pages The Denver Academy has recently researched and defined some of the important facts surrounding the Amazon rainforest. In 2017, the Amazon rainforest covers 2.1 million square miles of South America. It is a vast ecosystem home to 10% of the world’s known species (The Denver Academy). They go on to say that the trees are so dense, when it rains, it takes 10 minutes for the water to break through the forest roof. The destruction of this habitat could lead to extinction of these species, and have devastatingRead MoreAmazon Rainforest Essay1641 Words   |  7 Pagesof the Amazon rainforest has been destroyed by deforestation since the 1960s. At the current rate of deforestation, over half of the remaining rainforest could be gone in the next 17 years (Bradford 2015). Deforestation negatively impacts animal biodiversity in the Amazon Rainforest. There are animal species that can only live in the Amazon Rainforest. With deforestation, they will become extinct. In this paper, habitat fragmentation, the diverse animal and plant population in the Amazon, deforestation

Schizophrenia Is More Than Just Hearing Voices - 1030 Words

Understanding Schizophrenia During your lifetime, chances are you’ve probably met someone who has been affected by schizophrenia in some way and you might not have even known. So what is Schizophrenia? Schizophrenia is a group of severe disorders involving major disturbances in perception, language, thought, emotion, and behavior. People with schizophrenia are able to control the disorder with medications and therapy and can even lead normal lives. Schizophrenia is not something everyone understands. This disorder is more than just hearing voices. To be able to fully understand schizophrenia you must know the symptoms, how it affects you biologically, psychologically, socially, and how to treat it. People who have this disorder can multiple symptoms leading to the diagnosis. Some symptoms are known as â€Å"psychotic symptoms† which includes a break with reality, hallucinations, delusions, or evidence of thought disorder. These symptoms are referred to as positive symp toms because they are so readily available. Negative symptoms, which are less readily observed, include withdrawal from society, the inability to show emotion or to feel pleasure or pain, total apathy, and lack of facial expression (Piotrowski, 2015). People schizophrenia also have senses that typically become enhanced or weakened. It can also be hard to concentrate or difficult to focus on things because their selection and filtering process may become impaired. One of the â€Å"psychotic symptom† of SchizophreniaShow MoreRelatedSchizophrenia Sufferers Hear Voices763 Words   |  4 PagesMakes Schizophrenia Sufferers Hear voices†. The sources of the article are from The Telegraph and it was published on September 5, 2017.The article is about how to decrease or fix voices that is a symptom of Schizophrenia. More than half of people with schizophrenia have voices in their head. Your mine can your friend or enemy. The was many research try to see if a certain type of th erapy of work of losing the voices. Scientists have found where part of our brain cause and produces the voices in ourRead MoreDissociative Identity Disorder And Schizophrenia893 Words   |  4 PagesBlunt, American politician, once said, â€Å"People with mental health problems are almost never dangerous. In fact, they are more likely to be the victims than the perpetrators. At the same time, mental illness has been the common denominator in one act of mass violence after another.† There is a misconception that mental disorders such as dissociative identity disorder and schizophrenia are the same. Today’s society often see all mental disorders as one, however, they are very much different. If one wasRead MoreSchizophrenia, Perception, And Behavior1712 Words   |  7 Pagesdeeper than paranoia. It is all much deeper that just a feeling, the feeling you feel is very real in your mind and eyes but it is all only something you can see. Things you once loved to eat bef ore now taste strange and you feel as though someone may be tainting your food to make it taste this way. These are all common symptoms of Schizophrenia, schizophrenia is a severe psychological disorder characterized by disorganization in thought, perception, and behavior. People with schizophrenia do notRead MoreSymptoms And Treatment Of Schizophrenia989 Words   |  4 PagesSchizophrenia occurs in people from all cultures and from all walks of life. Schizophrenia is a chronic brain disorder that affects a small portion of the population in the world. When schizophrenia is active there are many different symptoms that can appear. Some symptoms can include delusions, hallucinations, trouble with thinking and concentration, and lack of motivation. When these symptoms are treated, most people with schizophrenia will improve over time with treatment. With the different studiesRead MoreMental Illness And Its Effects On Society Essay1475 Words   |  6 Pagesfound not criminally respon sible (NCR) last Thursday after he attacked a stranger with a hammer. At the time of the attack, Weber was on his way back to a transitional group home. He d been released from the Royal Ottawa Mental Health Centre less than two months earlier and was under a care plan prepared by his psychiatrist. He got off the bus, went into a grocery store and purchased a hammer and a knife. When Weber emerged from the store, he attacked an unsuspecting 55-year-old Ghebrehiwet suddenlyRead MoreSchizophreni A Mental Disorder Essay1278 Words   |  6 PagesSchizophrenia is a mental disorder that takes over a patient’s body and mind. Schizophrenia’s causes and mechanisms remain poorly understood, and the most common treatments do little to restore patients health (Kurtz 7). Schizophrenia affects the person’s brain and ability on to think and function. People with Schizophrenia have voices inside their heads telling them to do things they don t want to. People with schizophrenia are not eligible to control the things they do or say. Schizophrenia isRead MoreThe Frightening Trauma Of Schizophrenia1288 Words   |  6 PagesThe Terrifying Trauma of Schizophrenia Elyn Saks, expert in mental illness, once said, â€Å"The schizophrenic mind is not much split as shattered. I like to say schizophrenia is like a walking nightmare† (Saks). Being affected by schizophrenia is not just a walk in the park; it damages and then destroys the victim’s ability to think. One can define schizophrenia as an illness that affects and damages a human’s brain. Schizophrenia affects victims in many different ways: mentally, physically, and sociallyRead MoreSchizophrenia Is More Common Than The Average Person852 Words   |  4 PagesSchizophrenia is more common than the average person believes it to be. According to SARDAA (Schizophrenia and Related Disorders Alliance of America), approximately3.5 billion people in the United States have schizophrenia. Additionally, a great portion of this population is homeless, and about half of everyone diagnosed have never received treatment for it (SARDAA, 2014) . For something that is so popular in our society today, it is important to understand what schizophrenia is and how it is diagnosedRead MoreSchizophreni A Psychological Condition That Causes Delusions Or Hallucinations?887 Words   |  4 PagesSchizophrenia is a psychological condition that causes delusions or hallucinations making it extremely difficult for those who have the disorder to discern between reality and the imaginations (American Psychiatric Association, 2013). These fictitious experiences are often frightening situations where the victim cannot properly respond if the danger were reality because he/she believes everything is reality, even events that are produced by the imagination. â€Å"Emil Kraepelin, who coined the termRead MoreAre You Really Insane? Essay1544 Words   |  7 Pagespsychiatric hospitals (Thirunavukarasu). These psychotic episodes consisted of hearing voices and noises. The eight patients fabricated the lie making these auditory hallucinations, considered signs of schizophrenia, more authentic by connecting the lie to personal memories and situations in their life (Rosenhan). Each pseudopatient gained admittance into a psychiatric hospital; seven receiving a diagnosis of schizophrenia while the other one received a diagnosis of manic depression, also known as bipolar

Egypt and the Nile free essay sample

The ancient Egyptians were polytheistic. They believed in over one thousand gods. Ancient Egypt was a highly agricultural society. But the land received almost no rainfall annually. Thanks to the River Nile, Egyptians had a steady source of water. The seasonal floods were highly predictable and made Egypt into a major agricultural empire. Ancient Egyptians were one of the earliest civilizations to practice large scale agriculture. To properly use the river Nile, the Egyptians created their own irrigation system which helped to expand the empire. As the civilization flourished, so did it’s people and culture. The Nile was inspiration for the Egyptian religion and culture. Most of the Egyptian arts follow a strict cannon. Usually the subjects of Egyptian art are Gods and Pharaohs. The Pharaohs were considered as gods themselves. The Egyptians worshipped their gods with so much passion. They believed that they could achieve immortality and be like gods themselves. We will write a custom essay sample on Egypt and the Nile or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Prominent Egyptians had tombs and they were embalmed. The body was mummified and the tomb contained items that the mummy would need in the afterlife. Some pharaohs’ tombs even contained large ships so that he could sale in the Nile for eternity. The Egyptian sunken relief of the God Horus, showcased in the Menil Collection displays the use of several different techniques used in ancient Egyptian Art. This sculpture can be compared to other Egyptian work like Ti’s hunt and also to the Greek cannon for building sculptures. The description reads â€Å"The Beautiful Horus, The great god, Lord of Heaven; one who is foremost in Bahet [possibly Edfu]. † This relief sculpture is presented by combining both frontal and profile view of Horus. Most of the Egyptian arts created are in sunken relief. Usually the subjects of Egyptian art are Gods and Pharaohs. The Egyptians worshipped their gods with so much passion. â€Å"Egyptian artists regularly ignored the endless variations in the body types of real human beings. Painters and sculptors did not sketch their subjects from life but applied a strict cannon, or system of proportions, to the human figure† (Kleiner, 64). This method of drawing lasted for centuries. Before drawing anything the Egyptians drew a grid on the wall. Then specific human body parts were placed in each of the squares. The height of the subject is already pre-determined. The Sculpture of Horus, from the Menil collection is dated to be from 1320 to 1200 BC. The 19th dynasty was in control during 1320 to 1200 B. C. The ancient Egyptians feared and adored their gods. They built huge temples and monuments to praise their gods. They aspired to become like their gods. The Egyptians wanted to become immortal. This is why there is the embalming process when someone is buried. The statues built in burial chambers were for this reason. The artist’s aim was not to portray living figures, but to suggest the timeless nature of the stone statue that was designed to provide an eternal substitute home for the ka† (Kleiner, 63). A look at scroll of Hu- Nefer illustrates what the Egyptians believed what would happen to a dead person’s soul. â€Å"At the left, Anubis, the jackal-headed god of embalming, leads Hu- Nefer into the ha ll of judgment. The god then adjusts the scales to weigh the dead man’s heart against the feather of the goddess Maat, protectress of truth and right. A hybrid crocodile-hippopotamus-lion monster, Ammit devourer of the sinful, awaits the decision of the scales. If the weighing had been unfavorable to the deceased, the monster would have eaten his heart. The ibis-headed god Thoth records the proceedings. Above, the gods of the Egyptian pantheon are arranged as witnesses while Hu- Nefer kneels in adoration before them. Having been justified by the scales, Hu-Nefer is brought by Osiris son, the falcon headed god Horus, into the presence of the green faced Osiris and his sisters Isis and Nephthys to receive the award of eternal life† (Kleiner, 77). All of the Egyptian art followed the Egyptian cannon. Even the sculptures followed this method. The statues of Pharaohs were rigid structures. The Pharaoh were all known to be patrons of art and built many monuments to please the gods. The sculpture of Horus was probably created for worshipping purposes too. Looking at the sphinxes can show us the further connection the ancient Egyptians had with the animals. The sphinx is a statue that has the body of a lion and the head of a human being. This could mean that The Egyptians thought that human beings had the power to be beastlike and have the mind ability of a god. Looking at almost any of the artwork representing Egyptian gods, one can observe the deep connection Egyptians had with animals. The jackal was a representation of the god Anubis. Scholars believe that the jackal was associated with Anubis was because Anubis is the god that opens the road to the afterlife, and jackals were seen to be roaming around the tombs and deserts. Almost every god that was worshiped was represented by an animal and these animals characteristics were then attributed to the god. Ancient Egypt was a place filled with culture. The Nile River played a major role in building this civilization. With the Niles help, Egypt was able to flourish and become a large empire. Ancient Egyptian religion played a huge role in the making of the Egyptian art. Most of the art from this era was depiction of gods and pharaohs. The sunken relief of Horus shows the cannon used by ancient Egyptian artists. Egyptian culture and gods had a large impact on the artwork created during this era and the same culture dominated the area for several hundred years. Reference Kleiner,Fred. Gardner’s Art Through the Ages. Boston: Wadsworth, 2011. Print.

Role Of Airplanes In World War II Essay Example For Students

Role Of Airplanes In World War II Essay Role ofAirplanes in World War IIChapter 1: War itselfFlying started when the first people onearth saw a bird flying in the sky, we were amazed of seeing how freelythey could move and to know that you could reach any place on earth withthis ability, since then our dream had been follow them. People then triedto make this dream possible, the result in all cases was serious pain andfailure after failure. A lot of time passed since the first time we dreamedof being able to fly, but we finally achived this goal. Two brothers wereable to do the first flight on history, this brothers were the Wrightsbrothers who achived the goal of all the humankind, even know when someonethinks of airplanes they think on the Wrights brothers, because thanksto them in 1903 the world had his first flying machine. But the planesstatus changed because of time. The porpuse of this flying machines wasto achive our goal, to fly and see the world, to imitate wonderful animalssuch as birds, but people had never thought that they could use airplanesas a war machine. After it was invented we were so eager to seek destructionthat we saw the potential of using it to kill ourselves. It all startedwhen we saw that people on the ground were indefencseless with this newwar toy. They found a lot of new uses for it for example: they used themto spy on their enemys, to know where they were heading, to make maps andstartegies on what will be the most useful way of attacking them, and thiswas its use during the first World War. This war was fought on land noton the air as the second war. People didn?t knew that their dreamcould be their mourder. After the war ended countries startedto look how to improve their new war toys, they put factories to try tomake airplanes reach a higher velocity, altitutde, range etc There wasa war between wars to see who was better, Americans made their airplanes,English tried to make their Royal Air Force the best one, Japanese wantedto make their airplanes lighter and faster, but the real winner in thiswar were the Germans, their airplanes could travel long range, they wereeasy to maniubrate and ofcourse they were able to use them for massivedestruction against other countries. Thanks to airplanes the Germans werethe powerful nation they were during the war. But why did Germans built better airplanes,well there were some reasons like :Germans live in a country with many mountains,people liked to fly model airplanes and make contests to see which werethe best ones, from this models a lot of airplanes were constructed. Anotherreason was that their scientists were very ingenious, people wanted revengefrom all the other countries. Their curiosity and their intelligence leadthem to make the best war toys in hisotory of war. After World War I Germans were humiliated,they burned their own money for fuel. They had nothing left, they justseeked for revenge, war has always been part of Germans culture. But anotherthing Germans have is that they are really smart, they dream of makingthings but they have a difference over all other nations, they dreams dobecome true, but they become true because of their intelligence and becausethey never give up. The versailled treatment was just like a tentationto make they come to life again, they realized to late that this treatmentwas not peace, it was just an intermission for the worst war ever in history,the first in where land, air and sea were involved. Logic happened the Germans broke the Versaillestrateament and started to build a strong army, they used all their moneyfor warfare, between this machines was the airplane. Airplanes were consideredthe most valuable arm the Germans had, with this machines they could bombentire cities in just questions of days and then send their soldiers tofinish the work making war very fast and easy to win, this concept wasknow as the Blitz Krieg. Some of this airplanes were the U2 bomber andhis brother, they were a two engine plane that could carry a larg numberof bombs and soldiers for attack.. Countries as Poland and Austria sawhow easily their armys were defeated because of this new war machines thatGermans were using. They didnt realized that for fighting this mounsterthey had to know what they were fighting, they were fighting against notonly man but against technology the new best friend of blood and war. Perceptual Development EssayChapter 2: What it leted us, what it tookAlmost at the end of the war the firstturbo engine was used they started to use this engines instead of the oldones because they were faster. And the first ones to use this were theGermans, maybe that?s why they were in control of almost all of thewar, they had the technology that other countries didn?t had. Their airplanes could travel almost at 800 km/hr, almost the double ofthe other airplanes, but their use was almost at the end of the war sothey coudn?t do a lot in this war. The allies were impressed whenthe first saw this airplanes, they were amazed of their speed, and everythingthey could offer. That?s why people started to use many of this advancesin their common use for traveling that?s why trips were so much faster. The kind of gear used for flying changeda lot in this times, the tires were made more resistable, the planes weremade to support higher pressures and to carry large amounts of weight,the controls of the planes were now easier to fly etc many advances weremade. Because the technology changes everything that exists on this worldthe airplane didn?t went outside of this change, they had changedthanks to things as the advances of technology. It?s how theworld is fixed, just as technology is made better, things are made smallerand more efficient. Maybe that?s why technology is afactor that affects living things in this world day by day. This is whathappened in world war II, there was a new way of how things were done,the used tanks for rapid land attacks and during this war the airplanewas considered really a war instrument. Because of the advances in technologymade in the airplane there was a new kind of war going around. But maybe too much advance on this machineswas not the best thing that could happen because this caused the deathof million of people, and this can?t be justified not even now sayingthat thanks to them planes are faster and a more common thing because Iam shure Ill give up all this advances for a world in which every yearwe didnt had to remember things that happened as this horrible war. ConclusionBecause of this technological advanceswar was something that people could never had imagine. This was a verydestructive machine and made war to be relied on machines rather than onsoldiers. But it also made this war very destructive and cruel. Technologybrings advances to society but if they are misused then problems can occur,millions of people could die and countries could be destroyed. Things arewhat people want to make them to be, if things are not used correctly thenproblems happen, this is just part of my report later on I will explainmore about each kind of plane and about how technology made airplanes avery destructive and effective machine.