Event Essay Example | Topics and Well Written Essays - 750 words

Event - Essay Example However, last year out of shear spontaneity and maybe a little convincing from my cousin I decided to go sky diving in San Diego. A decision I regretted until the moment I ignored the violent palpitations from my heart, took a deep breath, spread my arms and soured into the open air. The whole event began with me at home one day chatting with my cousin about what was the most daring thing we had ever done. The conversation was pointless and yet it was entertaining and stimulated our brain cells to relive the moments which we dared not revisit on a normal occasion. Some of them were a bit edited as embellishment is a part of every discussion between my cousin and I. As the darkness slowly took over we began to talk about things we thought we could never do and then sky diving came up. My cousin, who is daring in almost everything he does said that he would gladly skydive as long as I joined him. Many thoughts ran through my mind as these words entered my ears and my brain processed them. I reluctantly agreed hoping to hear the something along the lines of â€Å"I was just joking†, but it never came. Instead a date and location was set; San Diego the following Friday. On the day I remember waking up with many different thoughts in my mind, however, all them leaning towards the question, â€Å"Am I really going through with this?† My cousin on the other hand woke up with the excitement of a three year old at Christmas or a bride before the day of her wedding. Everything I did from then on was nervy, my hands were shaking, my appetite was missing and my breathing seemed like that of a person who was suffocating. From all the moments in my life, this was definitely one of the most memorable due to the butterflies that colonized my stomach. I was a prisoner of fear without the option or possibility to appeal. This hour of my life seemed to take place in days as I prolonged the inevitable and

N 750 words, discuss and provide support for the evolutionary origins Essay

N 750 words, discuss and provide support for the evolutionary origins of the following organisms or disease HIV,and how or why it spread to humans - Essay Example evidence put forward by a new team of researchers suggests that the AIDS pandemic dates back to as early as 1884 and that the virus responsible for causing the disease began circulating among humans in the Sub-Saharan African regions between the years 1884 and 1924 (National Geographic, 2012). Also, studies indicate that the first instances of this disease were observed among African primates who were detected with a virus closely related to the HIV, known as SIV (Simian immunodeficiency virus). The SIVs are known to have been transferred to humans through hunting activities and the consumption of primate meat by the humans in the African region (Hahn et al., 2000). The study of molecular phylogenies indicates the various cross-species transmission of the virus to humans. The exact number of cross-species transfer of this virus is difficult to estimate, however studies have shown that the incidence of HIV among humans is likely to be caused by as many as three such transfers in case of HIV-1 whereas the sub groups M, N and O are likely to be of independent origin (Gao, 1999; Sharp, 2001). The Evolutionary Theory: In order for any virus transferred from an animal to affect the human, it is essential for it to adapt to the new host. This is a rarity, since mostly viruses transferred from animals to humans do not affect the latter. However, this theory posits that if the virus transmitted from the animals have had several opportunities to enter the human body, it is highly likely for the said virus to adapt to it and latch on to the receptors thus affecting the human cells in the process. The same has been observed in case of the SIV virus which is a virus originally found among animals but successfully adapted to the hosts thus mutating into HIV, thus converting itself into a human virus (Kirkland, 2010). The Hunter Theory: Some researchers believe that the HIV virus is a mutation of the SIV virus commonly found among primates and has been transferred to humans