Hi! I´m Alejandra. I´m preparing an English exam and it will be great if someone helps me with the mistakes in this essay. Thanks! :)

It is universally acknowledged that Medicine, as other sciences, has experienced an incredible development in last century. Antibiotics, vaccines, new cancer treatments and the surgery advancement can make us think that in only a few years, we are going to be immortal or, at less, we are going to live until we have 200 years old. Is it possible, however?

In the last decades, vaccines have avoided the dead of thousands of people, such as antibiotics. Likewise, the introduction of blood transfusions and anaesthesia in surgery allows doctors to save lots of lives. Nevertheless, avoiding these illnesses we are creating a society full of aged people and, as a result, other illnesses such as Alzheimer´s disease or Parkinson´s disease are getting more and more common. We are removing lots of illness, conversely, other ones are appearing.

Human´s body is an imperfect machine and that´s why we get ill. Even though Medicine is doing a lot of progress we are made of cells, and the cycle of the cells include ageing and dead. Maybe one day we can live 200 or 300 years old but is important taking in count that death is a part of life and, for this reason, we are never going to be immortals.

Is this sentence correct grammatically?

The effectiveness of teaching problem-solving skills and decision-making on the quality of life and life expectancy for orphans.<o:p></o:p>

Hey! Please don't mind American or British Spelling mistakes... 

Question: 

The diagrams below show the life cycle of a species of large fish called the salmon. 

Summarise the information by selecting and reporting the main features, and make a comparison there relevant. 

The process diagrams illustrate the life cycle of salmon fishes, which are large by shape. 

There are three main stages of salmon's life cycle. At the first stage, there are just salmon eggs lying around small stones under the reeds in the upper river, where water moves slowly. After five to six months, they become fries. At the second stage, fries live in the lower river, which flows fast for four years and the fries become smolts. Smolts swim in the open sea for five years,  grow up to be adult salmons. However, they have to go back to the upper river to lay eggs to keep the life cycle continue. 

There are three shapes of salmon’s life cycle. The fry is three to eight centimetres in size. They grow up to become smolts, which are twelve to fifteen centimetres. In the last, they become bigger as adult salmons, which are seventy to seventy-six centimetres. 

In summary, salmons live in the three different environments and different sizes of their body. They spend their whole life in the upper river and the open sea to sustain their life cycle.

Hey! Please don't mind American or British Spelling mistakes... 

Question: 

The diagrams below show the life cycle of a species of large fish called the salmon. 

Summarise the information by selecting and reporting the main features, and make a comparison there relevant. 

The process diagrams illustrate the life cycle of salmon fishes, which are large by shape. 

There are three main stages of salmon's life cycle. At the first stage, there are just salmon eggs lying around small stones under the reeds in the upper river, where water moves slowly. After five to six months, they become fries. At the second stage, fries live in the lower river, which flows fast for four years and the fries become smolts. Smolts swim in the open sea for five years,  grow up to be adult salmons. However, they have to go back to the upper river to lay eggs to keep the life cycle continue. 

There are three shapes of salmon’s life process. The fry is three to eight centimetres in size. They grow up to become smolts, which are twelve to fifteen centimetres. In the last, they become bigger as adult salmons, which are seventy to seventy-six centimetres. 

In summary, salmons live in the three different environments and different sizes of their body. They spend their whole life in the upper river and the open sea to sustain their life cycle.