Crown of Thorns

The Crown of Thorns starfish (Acanthaster Planci) Anjali Barnes 2016 Ms. Lee 9X Acanthaster planci Introduction The Crown of Thorns starfish, or Acanthaster Planci, is one of the largest threats to the Great Barrier Reef. The starfish, also known as COTS, can have up to 21 arms, each with hundreds of toxic spines. They move by expanding and contracting these feet, and feed on hard coral. Abiotic features are non-living or physical factors and can have a large effect on the Great Barrier Reef ecosystem and the Crown of Thorns starfish. These include water temperature and nutrients in water. The Australian Institute of Marine Science state that survival rates rise by 240% with only a 2 degree temperature increase, therefore contributing to the population burst of COTS. Also, nutrients in water have been proven to improve the survival of the Crown of Thorns starfish. In the wet season, flood plumes bring in nutrients to the Great Barrier Reef, which stimulates phytoplankton blooms and provides food for the starfish. Biotic factors, or things influenced by living components, also have an impact on the Crown of Thorns starfish, including human impacts and coral. COTS numbers have increased due to the fishing of predators, and they feed on coral to survive. Discussion In the past,…

Crown-of-thorns Starfish or COTS are marine invertebrates that are responsible for approximately 42 percent of the loss of coral on Australia’s Great Barrier Reef (Cranston, 2015). Plagues of this starfish have destructed coral reefs world wide. Scientists have identified fossil evidence dating back to millions of years ago, however outbreaks have only been detected in the last 50 years (Cranston, 2015). They are characterised by their venomous thorns and are capable of piercing through…

some of the paints to see if it would work, so I sat down on a corner and started mixing the colors. The mixture was good it came out as we wanted, but it wouldn’t stay on the skin until we added corn syrup. We had ten minutes left and I still had to cover myself with the paint and put on the crown of thorns and the toga. The crown was made or real thorns, so I had to be careful when putting it on my head. After the ten minutes passed it was time to go out and begging with the demonstration. We…

1908 is his interpretation of the society in which he found himself, views on religion, nature, and sex and love. The perfectly square painting’s foreground is a lush green mound covered in hundreds of small pink, gold, red, and purple flowers. The greenery extends over three-fourths of the painting. The middle ground hosts a couple, male and female, arms locked in a great intimate embrace. The composition is very simple; allowing the viewer’s attention to rest solely upon the couple; with…

We will probably take X-rays to discover the scope of the problem. This will vary according to the particular damage. If the tooth was cracked, having it bonded could be a wise choice. A crack that is long, but not below the root line, may be best served by a crown. If the crack reaches into the root, then a root canal procedure will likely precede the crown. Chipped teeth may require bonding, crowns, or veneers. If a tooth is knocked out and cannot be re-implanted, a dental implant may be a…

was created and also in that same year the chemical and research division was created. In 1941 the machine works division was established at the same factory. From 1942-1946 a large number of cars and trucks were created. This always happens during a great time of promise trouble comes. In 1950 there was a terrible financial crisis in Japan and this lead to a dispute with labor. Many individuals that established the company voluntary retire for the good of the company. The rest of the decade…

Etruscan Mirrors Vs. Cloud Gate Modern versus Ancient, 2006 versus 300 B.C. and in some regards a culture versus a culture. The two pieces of art at face value are inconceivable to compare and seem distinctively different. Though, many differences there are a few similarities between the two pieces of art; The Etruscan Mirrors and The Cloud Gate that stem beyond the looks and into the symbolism and meaning for creation and the attempted message that the artists were trying to convey.…

Crown Heights, located in Brooklyn, is known to be a diverse neighborhood. It is notoriously known to an unsafe and run-down neighborhood, but the recent gentrification of the neighborhood is proving its reputation wrong. There have been numerous reports of tension and anti-Semitism between the Black people and Jews in Crown Heights. One of the main incidents that occurred between them is the August 1991 riot, which was said by Henry Goldschmidt, a scholarly author and researcher, to be the most…

Christ Crowned with Thorns, is oil on canvas painting by Matthias Stom. It is currently located at Norton Simon Museum. It was painted between approximately 1633 and 1639; it is 110.8 cm in height and 161 cm width (The Norton Simon Museum website). Christ Crowned with Thorns is an example of Baroque artwork, which can be seen in the subject matter, context, and artistic style of the artwork. Firstly, the subject matter of the painting Christ Crowned with Thorns makes this artwork an example of…

the reef all together. Another threat to the survival of the Great Barrier Reef is the crown-of-thorns starfish, Acanthaster planci. The crown-of-thorns survives by eating the corals and living off the reef. In certain environments, the starfish can typically be healthy for reefs, for they control the rapid growth of certain corals so that other species can develop. When there is a widespread overpopulation or outbreak of the crown-of-thorns, the starfish becomes dangerous to the reef,…