Research paper topics, free example research papers

Free research papers and essays on topics related to: crustaceans

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  • Acid Rain - 1,774 words
    Acid Rain What is acid rain? Acid rain is the term for pollution caused when sulfur and nitrogen dioxides combine with atmospheric moisture. The term 'acid rain' is slightly misleading, and would be more accurate if deemed 'enhanced acid rain', as rain occurs acidic naturally. Acidity is measured on what is know as the pH scale. Fourteen is the most basic, seven is the most neutral, and zero is the most acidic. Pure rain has a pH level of 7, which is exactly neutral. The acidity of rain is determined by the pH of pure water in reaction with atmospheric concentrations of carbon dioxide, resulting in carbonic acid. These particles partly dissociate to produce hydrogen ions and bicarbonate ions ...
    Related: acid, acid rain, rain, electric utilities, major change
  • Acid Rain - 1,731 words
    Acid Rain Introduction: What Causes Acid Rain? One of the main causes of acid rain is sulfur dioxide. Natural sources, which emit this gas, are Volcanoes, sea spray, rotting vegetation and plankton. However, the burning of fossil fuels, such as Coal and oil, are largely to be blamed for approximately half of the emissions of this gas in the world. When sulfur dioxide reaches the atmosphere, it oxidizes to first form a sulfate ion. It then Becomes sulfuric acid as it joins with hydrogen atoms in the air and falls back down to earth. Oxidation occurs the most in clouds and especially in heavily polluted air where other compounds such as ammonia and ozone help to catalyze the reaction, changing ...
    Related: acid, acid rain, rain, case study, ohio river
  • Animal Behavior - 2,294 words
    ... cle. Although, there were no consistent intervals between breaks, they did range between five and l0 minutes apart. Furthermore, every time the trout moved, it always returned to the same position it left from. Conveniently, the trout may have used the three stones at the base of it's schooling position as a marker Also, the school showed something that resembled a hierarchy of order. It appeared that the larger fished floated toward the bottom, while the smaller fished floated at the top. During the observation period, the fish dispersed in a rapid manner on three occasions. On the first random dispersement, no significant signal was apparent. However during the second rapid dispersion! ...
    Related: animal behavior, social animal, food chain, more important, component
  • Aquaculture - 1,393 words
    Aquaculture Aquaculture is the farming of aquatic organisms in fresh, or salt water. A wide variety of aquatic organisms are produced through aquaculture, including fish, crustaceans, mollusks, algae, and aquatic plants. Unlike capture fisheries, aquaculture requires deliberate human intervention in the organisms' productivity and results in yields that exceed those from the natural environment alone. Stocking water with (juvenile organisms), fertilizing the water, feeding the organisms, and maintaining water quality are common examples of such intervention. Most aquacultural crops are destined for human consumption. However, aquaculture also produces bait fishes, ornamental or aquarium fish ...
    Related: aquaculture, thermal energy, natural environment, atlantic coast, concrete
  • Biodiversity - 1,177 words
    Biodiversity Diversity Essay American biologist R. H. Whittaker in 1959 described a classification system of five primary kingdoms: plants, animals, fungi, protists, and monera. Kingdom animalia cover all taxonomic kingdom all living or extinct animals, an example of an animal is a human. Humans thrive off of one thing or another in each of the five kingdoms. The monera kingdom is the lowest division of rhizopods. Bacteria belong to this kingdom. There are many useful and harmful bacteria in the human body including those that are similar to amoebas. They dont have a nucleus. Plantae consist of all living or extinct plants (Plantae, kingdom Plantae, plant kingdom) the taxonomic kingdom that ...
    Related: biodiversity, humans evolved, animal kingdom, north america, specialized
  • Blue Whale - 287 words
    Blue Whale The Blue Whale The blue whale or balaenoperta musclus is the largest animal to ever have lived on Earth. Whalers have reported this whale to being over 100 feet long and weighing over 150 tons! The blue whale is a mammal, because it has milk, hair, and the embryo develops in the mothers womb. The blue whale is a type of baleen whale. The blue whale eats mostly plankton and crustaceans like krill or copecods. The blue whale is located in the Atlantic Ocean. The smaller species of the blue whale, known as the pygmy blue whale, live in the Indian Ocean. The reason this whales population has dropped so dramatically is because of the first whaling expeditions. The whalers killed thousa ...
    Related: blue whale, whale, animal rights, indian ocean, soap
  • Blue Whale - 491 words
    Blue Whale The blue whale heart is the size of a small car, the major arteries leading from the heart a small child can stand it! This is an example about amazing whale fact. I focused about previous amazing facts on whales, dolphins, and porpoises in this research paper. As we knows, whales are one of the most intelligent mammal in the ocean. There are two kinds of whale, one is toothed whales and the other one is baleen whale. The third largest whale in the world is the sperm whale. It is the biggest toothed whale in the world. In Latin, physeter macrocephalus means sperm whale. The sperm whale has the biggest forehead of the whales. It has a long narrow jaw. The sperm whale smells through ...
    Related: blue whale, whale, research paper, reproduction, shallow
  • Canadian Birds - 1,613 words
    ... vy wind is wiffeling, to do this the goose turns its body sideways so that it's wings are perpendicular to the ground, the bird loses it's left and basically falls out of the sky, this technique is known to glider pilots as side slipping because you slip out of the sky (Breen). Most people believe that the migration north and the migration south are the same but actually they are different (Breen). The migration north to the breeding grounds is a slower and more relaxed one than that of the one moving south (Wormer). The migration north sometimes begins in late January for Canada Geese that are wintering far south, but the majority of movement occurs in March (Resource Reader). The femal ...
    Related: canadian, good food, most dangerous, animal science, agricultural
  • Corals And Adaptations - 680 words
    Corals and Adaptations Coral reefs are among the most diverse and productive communities on Earth. They are found in the warm, clear, shallow waters of tropical oceans worldwide. Reefs have functions ranging from providing food and shelter to fish and invertebrates, to protecting the shore from erosion. Although many corals resemble plants, they are actually members of the animal phylum Cnidaria. Most corals are colonial, which means that each coral is made up of many individual polyps connected by living tissue (the coenosarc). Each polyp has a cup-like shape with a ring of tentacles around a central opening (pharynx) that functions as both mouth and anus. The tentacles are tipped with stin ...
    Related: coral reefs, symbiotic relationship, different types, important role, shallow
  • Fish Gills - 562 words
    Fish Gills Not all animals have lungs. Many animals live in environments where lungs would be efficient enough for survival. Gills are another type of respiratory system, which are very efficient at removing oxygen from water: there is only 1/20 the amount of oxygen present in water as in the same volume of air. Gills greatly increase the surface area for gas exchange and they occur in a variety of animal groups including arthropods (including some terrestrial crustaceans), annelids, fish, and amphibians. Gills are typically comprised of a gill arch, which contain veins and arteries that supply blood flow to the attached gill filaments. The arches are a rigid stucture which provide support a ...
    Related: fish, oxygen content, respiratory system, total number, david
  • Freshwater Regions - 1,507 words
    Freshwater Regions Freshwater is defined as having a low salt concentrationusually 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, and wetlands. The following sections describe the characteristics of these three freshwater zones. Ponds and Lakes These regions range in size from just a few square meters to thousands of square kilometers. Scattered throughout the earth, several are remnants from the Pleistocene glaciation. Many ponds are seasonal, lasting just a couple of months (such ...
    Related: freshwater, plant species, barrier reef, sea anemones, crucial
  • Green Turtle - 1,925 words
    Green Turtle Introduction The Green Turtle (Chelonia mydas) is one of the many species of turtles that inhabits the vast oceans. The green turtle is named for the greenish color of its fat found under its shell. It is a large, heavy reptile, usually about 0.7-1.0 m in shell length and about 90-140 kg in weight. The maximum length and weight are about 1.2 m and 375 kg respectively. (1) The green turtles upper shell is smooth and wide, the animal is brown, but when the light from the sun hits it, the green color from the fat is visible. The green turtle is found in warm, coastal waters around the world. (2) Sea turtles, in adaptation to an aquatic life, have limbs modified into flippers for ef ...
    Related: turtle, canadian journal, western united states, various types, eggs
  • Herbert George Wells - 1,626 words
    ... nd extinct. He only had 19th century knowledge so he was probably not aware of this or he didn't care because most people were probably not aware of the study of genetics. They didn't show much interest in learning they would run around and play with toys and lose interest in a never ending cycle like a child. He didn't know there language but it was obviously derived from the English because one of the Elis asked him if he had come from the sun and he understood but some of the other things that the Eli were saying didn't make sense to the time traveler. He saw the white sphinx and describe it as having a silver tree at its shoulder and the sphinx was made of marble and the wings of it ...
    Related: h. g. wells, herbert, time machine, make sense, laid
  • Mercosur - 1,110 words
    ... applied to the total nominal tariff of each country as of August 5, 1994. No other tariff or non-tariff barriers will be applicable to the products included in this Regime. About the Uruguayan Economy 153. What was GDP share of the main sectors during the years 1991-1993? Agriculture 11.3%, manufactured goods 23.1%, construction industry 3.9%, electricity 3.1%, retail and restaurant/hotel services 12.8%, transport, storage and communications 7.7%, financial institutions, insurance, real estate and services to enterprises 22%, municipal, social and personal services 17%. These percentages are reflected in the employment structure. Employment structure excluding the agricultural sector as ...
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  • Myopic Little Men In Tuxedos, Or Highly Efficient Landwater Animals Recent Research Indicates Theres More To Penguins Than Me - 1,032 words
    Myopic little men in tuxedos, or highly efficient land/water animals? Recent research indicates there's more to penguins than meets the eye. If you've every wondered what it would be like to be able to see as clearly under water as you can on land, just ask the nearest penguin.Most aquatic animals are short-sighted on land. Most terrestrial animals (and that includes us) are far-sighted under water. But researchers have discovered that penguins can apparently see equally well in both environments, because of the unique structure of their eyes. Penguins have to be able to see well under water because their diet consists mainly of plankton, molluscs, crustaceans, and the inevitable fish. Throu ...
    Related: efficient, large numbers, associate professor, information services, chase
  • Penguins - 1,488 words
    ... ts own body temperature. Often chicks herd together in tight groups to keep warm from the freezing arctic air. The eggs of penguins tend to vary from species to species in regards to size, shape and weight. The colors of penguin eggs tend to be white, bluish or greenish. A chick depends on its parents for survival between hatching and obtaining its waterproof feathers. Once a chick has lost its down feathers and they have been replaced with waterproof feathers, the chick is able to enter the ocean and become somewhat independent of its parents. Penguins are very efficient swimmers and; although they are used to swimming at speeds of 5 mph, some of the species can travel up to speeds of 8 ...
    Related: emperor penguin, environmental news, human race, marine life, leather
  • Penguins - 1,043 words
    Penguins ================================================== Penguins: the eyes have it! LIFE SCIENCES -------------------------------------------------- Myopic little men in tuxedos, or highly efficient land/water animals? Recent research indicates there's more to penguins than meets the eye. If you've every wondered what it would be like to be able to see as clearly under water as you can on land, just ask the nearest penguin.Most aquatic animals are short-sighted on land. Most terrestrial animals (and that includes us) are far-sighted under water. But researchers have discovered that penguins can apparently see equally well in both environments, because of the unique structure of their eye ...
    Related: information services, falkland islands, large numbers, centre, comparison
  • Penguins - 1,033 words
    Penguins Myopic little men in tuxedos, or highly efficient land/water animals? Recent research indicates there's more to penguins than meets the eye. If you've every wondered what it would be like to be able to see as clearly under water as you can on land, just ask the nearest penguin.Most aquatic animals are short-sighted on land. Most terrestrial animals (and that includes us) are far-sighted under water. But researchers have discovered that penguins can apparently see equally well in both environments, because of the unique structure of their eyes. Penguins have to be able to see well under water because their diet consists mainly of plankton, molluscs, crustaceans, and the inevitable fi ...
    Related: large numbers, cornell university, methods used, species, seal
  • Penguins - 591 words
    Penguins I They are small white and black bird like creatures that live in cold regions. Penguins are the most fascinating creature around. II Explanation 1 Physical characteristics A Most penguins have a white breast and a black back and head. Many species exhibit red, orange, or yellow patches on the head and neck. Because their short legs are placed far back on their bodies, penguins assume an upright posture. B Penguins are grouped into 18 species and 6 genera, most of which are found in Antarctica and on subantarctic islands. Others are native to the coasts of Australia, South Africa, and South America and to the Galapagos Islands. C The largest species are the king penguin, from 36 to ...
    Related: emperor penguin, new zealand, southern hemisphere, surface area, preserve
  • Penguins: The Eyes Have It - 1,041 words
    Penguins: The Eyes Have It! Myopic little men in tuxedos, or highly efficient land/water animals? Recent research indicates there's more to penguins than meets the eye. If you've every wondered what it would be like to be able to see as clearly under water as you can on land, just ask the nearest penguin.Most aquatic animals are short-sighted on land. Most terrestrial animals (and that includes us) are far-sighted under water. But researchers have discovered that penguins can apparently see equally well in both environments, because of the unique structure of their eyes. Penguins have to be able to see well under water because their diet consists mainly of plankton, molluscs, crustaceans, an ...
    Related: large numbers, cornell university, associate professor, science, pane
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