Sea urchins are members of the phylum Echinodermata‚ which also includes sea stars‚ sea cucumbers‚ brittle stars‚ and crinoids. Like other echinoderms‚ they have five-fold symmetry (called pentamerism) and move by means of hundreds of tiny‚ transparent‚ adhesive "tube feet". The symmetry is not obvious in the living animal‚ but is easily visible in the dried test. Echinodermate means "spiny skin" in Greek. Specifically‚ the term "sea urchin" refers to the "regular echinoids"‚ which are symmetrical
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If I was writing a report on an endangered species I would choose the sea turtle. The reason I would choose the sea turtle is because in our source “Turtles in Trouble” it gave us the story of a turtle named Adelita. This turtle traveled 6‚000 miles alone to Japan. To me that is pretty amazing that a turtle can remember where she laid her eggs especially since it is very far away. Another reason I choose this article is because was pretty reliable. This article was reliable because scientist Jay
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Under the Sea University of Under the Sea Overpowering the lands is water. About 70 percent of the Earth’s surface is submerged in water. The Oceans are so massive‚ scientist have only had the opportunity to explore a significantly small portion of it. However‚ the small portion recorded has discovered over 2 million species of marine animals. That is not including the fractions of the animals that live in the unexplored ocean’s floors and surfaces (Science Daily‚ 2011). Besides
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13 Cause and Effect Essay. The Aral Sea disaster. The Aral Sea disaster is one of ecological disasters that effect terribly on our life. It was fourth largest lake in the world‚ but nowadays 80 per cent of water disappeared. The main reason why the Aral Sea has shrunk so dramatically is because water from the rivers flowing to it has been diverted for irrigation. The Aral Sea basin is fed by the Syr Darya and Amu Darya Rivers‚ which flow directly into the sea. Other rivers feeding the basin are
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Mediterranean Sea (35 degrees north‚ 18 degrees east) is a sea of the Atlantic Ocean almost completely enclosed by land: on the north by Europe‚ on the south by Africa‚ and on the east by Asia. It covers an approximate area of 2.5 million km² (965‚000 mi²)‚ but its connection to the Atlantic (the Strait of Gibraltar) is only 14 km (9 mi) wide. In oceanography‚ it is sometimes called the Eurafrican Mediterranean Sea of the European Mediterranean Sea‚ to distinguish it from Mediterranean seas elsewhere
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This passage is an extract from Joseph O’ Connor’s Star of the sea which was penned in the year 2002. The passage makes use of a third person narrative view point as a result of which the readers are provided with a vivid image of passengers aboard a stormy sea ship. The passage talks about a ship afloat a stormy sea and how the passengers on the deck are caught unaware due to this storm. The author uses a descriptive style of writing with short crisp sentences that heighten the pace of the story
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2/22/12 ENTO115 Insects in the Sea After reading multiple discussion board posts‚ I realized that many students had great examples as to why insects are not found in the sea. I found three specific hypotheses that I supported. The fact that insects need oxygen to survive‚ their size ratio compared to their predators‚ and their inability to survive in salt were the three hypothesis of my choosing‚ First‚ the simple fact that insect need oxygen to survive. In the lectures‚ we discussed how
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Riders in the Sea Sheri-Lyn Crump ENG 125 Introduction to Literature Instructor: Mary Lounsbury December 17‚ 2012 The sea is both a source of life and death. As we can see in the poem‚ the sea offers food‚ a way to the mainland and other life giving essentials. It is also the reason that Mauyra has lost all the men in her family. At the beginning of the story we realize that Mauyra’s Daughters Colleen and Nora are trying to hide some clothing that the young priest has given them‚ thinking
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Nicole Hart HIST 2300- Christopher Trobridge Writing Assignment One October 16‚ 2010 “In the Heart of the Sea: The Tragedy of the Whale ship Essex” In order to understand the ramifications of an event such as the sinking of the Essex one needs too understand the community that produces the crew. Nantucket was an island community much more than the literal sense of word. The islanders of Nantucket saw themselves differently than the rest of the word. They learned the skills of whaling from
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Daiana E. Field 5º1º The village by the sea By Anita Desai Analysis of the novel This story takes place in a small fishing village‚ called Thul‚ which is ¨only fourteen kilometres away from Bombay¨ (Chapter 4)‚ one of the biggest cities on the western coast of India‚ on the Arabian Sea. Although the author does not specify the year in which the story is set‚ we can deduce it takes place in the early twentieth century. We reach to this conclusion through the description of Bombay‚ ¨[…]here
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