Mythological Creatures: Mermaids Essay

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Mythological creatures, such as Mermaids, are believed to not be true. If mermaids did exist, however, could they survive under the environmental conditions for which they live? Honestly, yes, under the absolute circumstances and correct biological makeup a half human/half fish creature could possibly revive in our natural world. Since a mermaid’s habitat is located in the ocean, they must adapt to its characteristics. The ocean is high in oxygen levels, but low in nutrient concentration. Also stratified, it has different zones known with distinctive components for each. For example, the upper photic zone accumulates plenty of light, but light intensity decreases rapidly with depth. To determine the temperature of the zones is based upon…show more content…
Partitioning in this cycle are three main blood vessels: arteries, veins, and capillaries. These networks are scattered throughout the body and blood travels in only one direction. Lastly, the heart (located behind the sternum or breastbone) is a hollow organ enclosed of smooth muscle that accommodates 4 chambers. Working in a rhythmic cycle, it pumps blood when contracting and accumulates with blood while relaxing. Therefore, allowing mermaids and humans to perform their roles in daily life. Continuously, mermaids are categorized as vertebrates because they do in fact have a backbone. Thus, all vertebrates have cardiac, smooth, and skeletal muscle. First, cardiac muscle is only found in the heart. Unlike skeletal muscle, cardiac muscle can trigger action potentials without input from the nervous system because of ion channels in their plasma membrane. Resulting in the rhythmic cycles discussed earlier. Second, smooth muscles, derived in hollow organs and blood vessels, are responsible for involuntary body activities; such as churning of the stomach. Third, skeletal muscle must be attached to a rigid structure in order to be operated. This category of muscle is only found in the top half of mermaids because of their fish-like bottom. Fish are over fifty percent muscle and are mostly segments of connective tissue that splits “sheets of muscle up called myotomes”(Ramel). To actively move in
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