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Biology Essay

Yellow Fever
In the last cycle, urban yellow fever, infected people cause epidemics when they bring the virus into highly populated communities where the residents are not immune and the infected mosquitoes transfer the virus between people (WHO 2011).Yellow fever has three stages: early stage, remission stage, and intoxication stage. In the early stage, a person experiences generalized symptoms such as a headache, anorexia, vomiting, fever, and muscular and joint fatigue. Symptoms usually go away
Pages: 4 (1000 words), Essay
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Your Inner Reptile
They were reptiles with mammal-like features. Reptiles have sharp teeth, but these mammal-like animals had started to have differentiation of teeth. Their teeth were designed for better carnivore diet, but the differentiation came with it matching of teeth as strategy, to get a bite, and strengthened them with more teeth roots.Mass extinction eliminated most, but some survived with new better opportunity. During this time, some species were completely wiped off, but the ones that survived had
Pages: 2 (500 words), Essay
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