Echinoderm Essays

BIO 308: ANIMALS : FORMS AND FUNCTIONS TITLE Abstract Introduction Octopuses are one of the smartest animals in the world. Octopuses live in oceans all over the world including pelagic waters ( near water's surface near the shells), coral reefs and crevices. Anatomy Octopuses are non skeletal organisms which are able to move around the water with speed and grace. They are able to fit into the space which is much smaller than their body size. Adult octopuses usually weigh 15 kgms and

A clam is a type of mollusk that is part of a group of sea creatures known as bivalves, which includes mussels, oysters, and scallops. Clams are considered to be a shellfish as they are enclosed within a shell and they are widely eaten as a popular seafood around the world. Facts about clam’s nutrients Clams are popular around the world as they are easily available and nutritional. Clams are considered to be one of the world’s most sustainable seafood resource as they are easy to manage and grow

Sea cucumber Introduction: Sea cucumbers are echinoderm animals that belong to the class Holothuroidea. These marine animals are characterized by their leathery skin and an elongated body. They are more than 1250 classified species of sea cucumber that can be found in oceans throughout the world. Usually sea cucumbers live on the sea floor. All sea cucumbers are ocean dwellers, though some inhabit the shallows intertidal zones while others live in the deep ocean of 5,000 m and more. Most sea

redevelop, which means that if an arm is lost, it is able to grow an entire new limb in given a period of time. A small number of species of starfish can again grow a complete new disc or echinoderm from a single limb, while other species require a part of the central disc to be attached to the dethatched part. An echinoderm is a male or female starfish. A Starfish reproduces asexually by a method known as spawning. It encompasses sexual organs or gonads in each arm, for this reason, a female starfish can

Writing assignment #3 Phylum Platyhelminthes, known as flatworms, which also include the Planarian. Animals within this phylum are the first organisms to evolve by having bilateral symmetry, meaning that their body is equally divided into left and right halves. Also by becoming triploblastic organisms, having three different tissue layers, the endoderm (inner layer), ectoderm (outer layer) and mesoderm (third layer) these structures will be the base for the adult body. They lack a body cavity and

In biology, regeneration is the process of renewal, restoration, and growth that makes genomes, cells, organisms, and ecosystems resilient to natural fluctuations or events that cause disturbance or damage.[1] Every species is capable of regeneration, from bacteria to humans.[2][3] Regeneration can either be complete[4] where the new tissue is the same as the lost tissue,[4] or incomplete[5] where after the necrotic tissue comes fibrosis.[5] At its most elementary level, regeneration is mediated

In the twenty-first century there are many issues for which environmentalists are promoting awareness. Some of the most heated topics include global warming, fracking, and even a decline in bee populations. Another pressing issue that some neglect to be concerned with is the human threat to coral reefs. Oftentimes humans appear to be more harmful than helpful concerning their surroundings. The absence of coral reefs would be detrimental to the environment and humanity. In order to fully grasp the

Personal Statement: Over my time as an undergraduate student, little about me has remained constant. I came into the program with sky-high goals, but no real plan for how, or even why, I would pursue them. I wanted to be a biochemistry and engineering minor, and go to medical school. Now, as I reflect upon the past four years, although I have not accomplished all of my freshman year goals, I realize that I have learned even more valuable lessons than I could have imagined. However, a desire to

the advantages we do today. But this is not the only difference. Marine Biologist gets new information about ocean life every year! In 384-322 BC is when much known marine life today was just found out about. These animals include crustaceans, echinoderms, mollusk, and just fish all together. This information was found out due to the findings of Aristotle’s writings. It is assumed that humans back way before 384 BC knew about these animals, but it was 322 BC that the first known marine life as recorded

Echinodermata and Mollusca is the two common phylum in the kingdom Animalia. Echinodermata consist of five large classes which are, class Crinoidea, example feathers star, class Asteriodea, example star fish, class Ophiuroidea example, brittle star, class Echinoidea, example sea urchins and the class Holothroidea, example sea cucumber. Phylum Mollusca consist of six major classes, which are Monoplacophora, Gastropoda, Cephalopoda, Polyplacophora, Scaphopoda and the last class which is the Bivalvia

2.1 Chemistry of Bioluminescence Bioluminescence is the production of light as a result of a chemical reaction without the use of heat within a living organism. For bioluminescence to occur usually two substances and a by-product such as oxygen are required. In the majority of bioluminescent reactions, the chemical reaction which leads to bioluminescence is the oxidation of a molecule called luciferin. Luciferin, which is the substrate in this chemical reaction, is the chemical in the reaction which

Chilean sea urchin, Loxechinus albus Introduction: The Chilean Sea urchins Loxechinus albus (Molina, 1782) is an edible echinoderm animal of the family Parechinidae. This species is native to the coasts of Chile and Peru and is considered among the key benthic herbivores in Chilean coastal waters. It is harvested commercially by fishermen and is considered an ingredient in Chilean cuisine. It is also known as “common green sea urchin” and its local name in Chile is “Erizo rojo” which means “red

development of the Chimaera due to the deep-water habitat in which they mostly reside. Chimaera reproduce by laying eggs; these eggs are covered in another egg layer and dropped onto the ocean floor. Their diet consists of prey such as crabs, clams, and echinoderms. The Chimaera may also eat other fish if need be. There main predators include humans, sharks, and really anything brave enough get near it’s venomous

The Great Barrier Reef- a fragile ecosystem 1 Australia- a country of diversity No matter how far I have traversed around this earth, I have yet to find another location that rivals Australia. Nowhere else on earth can you find such spectacular landscapes, such unique and fascinating animals, and such warm friendly people. This is why I will always call Australia home. 1 This is a quote by Adam Cropp, who grew up in Port Douglas, Australia.2 He travels around the world regularly but still thinks

fossil record. Pre-Cambrian organisms consisted of prokaryotes, eukaryotes, bacteria and ediacaran life forms. In less than 5 million years, most of the basic body plans that we observe in modern groups appeared; cnidarians, molluscs, arthropods, echinoderms and the chordates all came on to the scene. This explosion directly conflicts Darwin’s theory of natural selection acting on random variation, the Cambrian fossil record contradicts the empirical expectations of

I visited the Salt Marsh Nature Center on Saturday April 18 to work on my environmental essay. The Salt Park Marine Center is located on East 33rd Street and Avenue U in Brooklyn, New York. When I arrived at The Salt Marsh Nature Center, I did some research and interviewed a park ranger. The information I received after the interview was very informative. I learned the history of Gerritsen Creek was established during the first half of the 20th century as a recreational and nature refuge for community

Hollywood has dramatized many shark films to depict sharks as bloodthirsty, flesh tearing, soulless predators that roam the seas scouring for juicy, innocent humans to feast on. Bull sharks are known to be one of the most aggressive sharks; however, shark attacks are extremely rare averaging only sixteen per year (National Geographic News). Most of these attacks are also due to the fact that most sharks have poor eyesight and easily get confused between humans and other ocean wildlife. Sharks are

Primary consumers are normally herbivores therefore they feed off of producers. There is a wide variety of herbivorous animals that reside in the Great Barrier Reef. These include invertebrates such as molluscs and echinoderms, as well as certain species of fish, the most notable being the parrotfishes, surgeonfishes, rabbitfishes, rudderfishes and damselfishes. The primary consumer’s role in the Great Barrier Reef’s food chain consists of them feeding off of the primary

Charles Darwin was a British researcher who first explored the advanced transformative hypothesis with his idea of improvement of all periods of life through the moderate working procedure of common determination. His work was of significant impact on the life and earth sciences and on creative thought. From his hypotheses of a variety of species to his record of regular choice, Charles Darwin has stunned the universe by demonstrating the world is older than already suspected and animals are evolving

For over a century, confirmation has been accumulating from anatomy and embryology that the Chordata phylum advanced from the echinoderms. A variety of fossils and living creatures to recount the tale of the move. An illustration of this transitional succession is seen in a gathering of dark spineless creatures called the lancelets. With a notochord, solid tail, gill openings, a digestive