Conversely the use of animals is seen by many in the medical field as necessary. While it is not ideal to cause harm to animals it is a safer way to test new products compared to testing them on humans. Typical research and development will begin trials on rats. If those tests prove successful then another set of tests are conducted on monkeys. Once the tests are successful with monkeys then human testing begins. These tiered rounds of testing are used to reduce the amount of mistakes and negative side effects in all breakthroughs. It is argued that animal testing saves many lives and there is no alternative to testing on a living organism. In addition there are strict regulations for animal testing which prevent any mistreatment of the animals in question.
The function of an argumentative essay is to show that your assertion (opinion, theory, hypothesis) about some phenomenon or phenomena is correct or more truthful than others'. The art of argumentation is not an easy skill to acquire. Many people might think that if one simply has an opinion, one can argue it successfully, and these folks are always surprised when others don't agree with them because their logic seems so correct. Argumentative writing is the act of forming reasons, making inductions, drawing conclusions, and applying them to the case in discussion; the operation of inferring propositions, not known or admitted as true, from facts or principles known, admitted, or proved to be true. It clearly explains the process of your reasoning from the known or assumed to the unknown. Without doing this you do not have an argument, you have only an assertion, an essay that is just your unsubstantiated opinion.