The Marine Mammal Protection Act Abstract This paper includes information a particular environmental law. Specifically‚ the Marine Mammal Protection Act is discussed along with the history and background of this particular environmental law. In addition‚ the reasoning behind its existence will be elaborately deliberated. The Marine Mammal Protection Act The Marine Mammal Protection Act was established and signed in 1972. According to Ray and Potter (2011)‚ this bill was “passed‚ despite
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Endangered mammal The maned-three-toed sloth‚ also known as the maned sloth is the rarest of the five sloth species and is endemic to Brazil (Macdonald‚ 2001) . Its name derives from the black mane of hairs‚ which runs down the back of its neck an over the shoulders. Like other sloths are characterized by their short bodies‚ long limbs and stumpy tails (Emmons‚ 1990) . Unusual is its proportions of body parts‚ with very small eyes‚ small ears‚ and a tail that is hidden in the fur ‚ along with a
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From Land To Sea: How could a Land Mammal turn into a Whale? by Tamara Schupp San Diego State University 04/03/06 H100/M4 Whale Evolution 2 From Land to Sea: How could a Land Mammal turn into a Whale? The evolution of whales has long been a mystery to researchers. A whale has so many derived characteristics of a land mammal‚ such as a large brain‚ it breathes air‚ gives birth to live young and is warm blooded‚ and yet it still manages to live in the sea. Evolutionists believe that
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TRANSPORT IN MAMMALS Blood is a connective tissue and every connective tissue consists of cell‚ ground substance or matrix and fibres. For blood‚ it has cells‚ matrix in the form of plasma and fibres in the form of fibrin. In transportation‚ the surface area to the volume ratio of organisms contributes to the rate of movement of materials. For example in Hydra‚ and flat worms‚ the ratio is so high so simple diffusion can allow substances to reach all tissues easily. If the ratio is low‚ in mechanisms
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Exchange in Mammals The mammalian respiratory system consists of the nasal cavity‚ pharynx‚ glottis‚ larynx‚ trachea‚ bronchi‚ bronchioles and air sacs (alveoli). The respiratory passages are lined by the presence of cilia and mucus-secreting cells‚ which keep them moist and trap dust‚ dirt and bacteria. The lungs are encased a rib cage. The rib cage is composed of the breastbone or sternum and ribs. At the bottom of the rib cage is a muscular diaphragm. Breathing in mammals. During inhalation
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Biology Mammals Grazing Herbivore: Herbivores digestive systems can consist of one of two types of insides‚ it can be a foregut fermenter where the Foregut Fermeters has two parts (a tubiform and a sacciform fore stomach) containing lots of microbes. The stomach is bigger than that of a hindgut fermenter considering its usually a bigger animal‚ the stomach has an extra chamber to help devour glucose from the cellulose (the herbivores diet is largely cellulose and is broken down by the microbes)
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Marine Mammal Trainer/Biologist Mikayla and I decided to interview Irene Gilgoff from the Pacific Marine Mammal Center. She is one of the most experienced employees there‚ being there for about fifteen years‚ marine animals are her life. The main parts of Irene’s job include working with the mammal’s hands on and taking care of them throughout the day. The Pacific Marine Mammal Center can be reached at (949) 494-3050 and is located at 20612 Laguna Canyon Road in Laguna Beach‚ California. Also
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Marine mammals also breathe air‚ and must come up to the surface of the water to breathe. They have small lungs in relation to their body size compared to humans to reduce problems of nitrogen building up in the blood caused by diving. They have to make sure no water gets into the gas exchange system‚ and gas exchange must occur efficiently. Marine mammals have to be able to hold their breaths for long periods of time while they are diving. Air enters the lungs through the trachea‚ which splits into
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Evolution of land animals THE LARGEST genetic study ever performed to learn when land plants and fungi first appeared on the Earth has revealed a plausible biological cause for two major climate events: the Snowball Earth eras‚ when ice periodically covered the globe‚ and the era called the Cambrian Explosion‚ which produced the first fossils of almost all major categories of animals living today. According to the authors of the study‚ Science‚ plants paved the way for the evolution of land
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Marine-Mammal Shows: Harmful to both Animals and People A famous dolphin trainer gave up his career which could have brought him both wealth and prosperity and became a free-the-dolphins activist instead. His name is Richard O’Barry and he is now struggling to conserve the rights of marine animals‚ especially dolphins. He was motivated by the fact that his precious dolphin (in the movie “Flipper”) that he once trained committed suicide in front of him‚ which shows one of the many problematic aspects
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