Friday, February 21, 2020

Discuss the similarities and differences between organisms in the Essay

Discuss the similarities and differences between organisms in the domains Bacteria and Archaea - Essay Example Archaea cell wall does not have a cell membrane and peptidoglycan and utilizes ether-linked lipids compared to an ester-linked lipids used by bacteria (Decker and Hinton, 2013). Archaea flagella developed from type IV pili bacterial while bacterial flagella advanced from type III secretion system. Bacterial flagellum is hollow and appears alike a stalk assembled by subunits that move up freely on the central pore causing a growth on the tip of flagella while, in archaea, flagella subunits grow at the base The reproduction of Archaea is asexual utilizing binary fission process, fragmentation and budding. Bacterial reproduction is asexually through a process binary fission, fragmentation budding, but bacteria show a unique ability by forming spores that enable them remain dormant for many years, characteristics not displayed by Archaea. Growth of bacteria follows three phases, the lag phase where cells adaptation to the environment, log phase where exponential growth happens and stationary phase when depletion of nutrients occur (Szukics, Hackl,and Zechmeister, 2012). Archaea survives in places and environment of extreme and cruel conditions like springs, marshlands, salt lakes, oceans, ruminants gut, and humans. Bacteria are everywhere and found in soil, radioactive waste, hot springs, organic matter, plants and animals bodies. These two microorganisms have a difference in biochemical and genetic ways (Mao, Yannarell, Davis, and Mackie 2013). Szukics, U., Hackl, E., Zechmeister-Boltenstern, S., & Sessitsch, A. (2012). Rapid and dissimilar response of ammonia oxidizing archaea and bacteria to nitrogen and water amendment in two temperate forest soils.  Microbiological research,  167(2), 103-109. Mao, Y., Yannarell, A. C., Davis, S. C., & Mackie, R. I. (2013). Impact of different bioenergy crops on N†cycling bacterial and archaeal communities in soil.  Environmental microbiology,  15(3),

Wednesday, February 5, 2020

In the afterlife, will Leonard deserve punishment for the muders he Essay

In the afterlife, will Leonard deserve punishment for the muders he committed in the flim The Momentum - Essay Example For this essay, it means this: the willful, deliberate commission of a morally incorrect act. Also, for purposes of necessary brevity, let us say that Leonard was not morally justified in the homicides that he committed. It is the opinion of this writer that Leonard will not be punished for the killings he engaged in, due to the caveat in the above definition regarding deliberate action. This implies that the person committing the action must 1. Understand the difference between right and wrong; and 2. Voluntarily choose to do wrong anyway. Given this definition, what sort of acts would be excluded from it? First of all, acts that are purely the results of circumstances outside the person’s actions are not â€Å"wrong,† even though they may cause horrible suffering and tragedy. As an example, imagine a motorist driving along a busy commercial street when a child suddenly runs in front of his car and is truck and killed. Let us say that the driver is not under the influence of drugs or alcohol, and that he is within the speed limit and operating his vehicle in a manner consistent with the principles of responsible driving. Let us also assume that he did not see the child until she was in the path of his car, and that he could not brake in time to prevent striking her fatally. Neither did he have time to swerve his car in another direction. Intention to strike the child, no malice in his heart towards her. It was an unfortunate accident in the purest sense of the word. He should not be punished by the courts for his act, nor by God or some other entity that apportions reward and punishment in the afterlife. In a real sense, in fact, it can be argued that he did not â€Å"act† in this scenario at all. The real culprit in the sad affair was the laws of physics. The man had no knowledge of the coming event and hence was unable to act to prevent it.