points) 2. Use the reference book to answer the following questions. Provide an explanation for the answers. a. In which zone can rooted plants be expected to be found attached to the seafloor? What is the name of this zone‚ and why are plants found there? Answer: Plants can be expected to found on the seafloor in the sub littoral zone. That environment allows the plants to make food by photosynthesis‚ because it is in a depth of about 200m‚ so the sunlight still can reach the bottom of the ocean floor
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is rising over a year . Many people are disposing chemical‚ sewage and garbage in the ocean which kills many marine organisms. The main food chain affects a wide spectrum of species and it will be rise over the years. For example‚ oil spills choke plants and animals preventing respiration and it will be a major breakdown for sea birds and mammals. Marine pollution cannot be stopped but can be reduced when people use proper disposal of chemical and rubbish. The new jersy-size dead zone that forms each
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How does the relationship between salt concentration effect osmosis in the aquatic plant Elodea? Quantitative data From observing the cells under a microscope‚ we see that they are continuously moving and therefore are alive. We have observed that when the cells are in the 10% sodium chloride‚ the chloroplasts are positioned to the sides of the cell wall and the cytoplasm is more expanded. Cells in the distilled water are slightly smaller than the cells in the sodium chloride solution and
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The freshwater biome | A lake at Acadia National Park‚ Maine. | Freshwater is defined as having a low salt concentration — usually less than 1%. Plants and animals in freshwater regions are adjusted to the low salt content and would not be able to survive in areas of high salt concentration (i.e.‚ ocean). There are different types of freshwater regions: * Ponds and lakes * Streams and rivers * WetlandsPonds and lakes These regions range in size from just a few square meters to thousands
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The Neritic zone is also called coastal waters‚ the coastal ocean‚ and the sublittoral zone. It is the part of the ocean extending from the low tide mark to the edge of the continental shelf. It is considered a shallow depth‚ extending to about 200 meters. The Neritic zone has decently well oxygenated water‚ low water pressure‚ and fairly stable temperature and salinity levels. This is the location of most of the sea life in the ocean. Salinity is the level of salt in the water. The Neritic zone
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This analysis of case studies from Los Alamos National Laboratory‚ and the case study to predict the effects of pesticides on aquatic systems and the waterfowl that uses them. Comparing the two processes of these case studies‚ along with analysis of the assessments. Describing the case study on the effects of pesticides in aquatic ecosystem‚ the risk assessment correlated to observed field studies and evaluate the importance of this type of correlation in general for all risk
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the fishes is depends on the quality and quantity of food that they eaten (Shelby D. Gerking‚ 1994). By identifying the species of food in stomach content of the fishes‚ it will be described the food habit of the fishes. Some fishes feed directly on plants (eg: phytoplankton or pondweeds or both) and some fishes fed on other animals‚ where the word of ‘’predator’’ usually implies on them (Shelby D. Gerking‚ 1994). However‚ Shelby D. Gerking (1994) also state that some fishes prefer phytoplankton and
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Sex change in Aquatic Species By: Gobezai Abebe Introduction. Many species of invertebrates‚ fish and plants undergo a process which is rare and requires detailed research to understand (Allsop and West‚ 2003). The process that they undergo is known as sex change. Focusing specifically on hermaphroditic fish‚ sex change can occur in two directions. One direction that sex change can occur is the change from female to male which is known as protogyny (Allsop and West‚ 2003; Kuwamura et.al‚ 2002;
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6‚ NO. 9‚ SEPTEMBER 2011 ARPN Journal of Agricultural and Biological Science ©2006-2011 Asian Research Publishing Network (ARPN). All rights reserved. ISSN 1990-6145 www.arpnjournals.com PROMISING ANTIFUNGAL EFFECT OF SOME FOLKLORIC MEDICINAL PLANTS COLLECTED FROM EL- HAMMAM HABITAT‚ EGYPT AGAINST DANGEROUS PATHOGENIC AND TOXINOGENIC FUNGI Department of Bioprocess Development‚ Genetic Engineering and Biotechnology Research Institute‚ Mubarak City for Scientific Research and Applied Technology
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Title: Investigating the Impact of Herbicides on Biodiversity in Florida Aquatic Ecosystems Candidate Number: 0189 Author: Taylor Hays Introduction Question: How are herbicides that are used to eliminate aquatic hyacinths in bodies of water being managed? And how do they affect those ecosystems? Hypothesis: If herbicides are sprayed on hyacinths in high concentration‚ the level of dissolved oxygen will be decreased by 55% if too much of the hyacinths are killed all at once this will affect the
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