Essay: The importance of the biodiversity. Preparation for TOEFL

 

The importance of the biodiversity

 

There are a number of species in this world that coexist harmoniously. Those who can interact with one another are called living things. There are many kinds of living things, they can be as small as a mushroom or as big as an elephant. In my opinion, the biodiversity of these species is very important.  I have two main reasons which I would like to discuss in the following paragraphs.

First, it is well known that if there are more living things that exist in an area, the better the ecosystem is. The diversity of species indicates the health of an ecosystem. A healthy ecosystem can offer valuable resources for humans. For example, if an ecosystem has not received tremendous damage caused by humans, it is most likely that the ecosystem can offer significant resources for communities such as water. Therefore, biodiversity is very important to preserve resources that are necessary for humans.

Second, biodiversity reduces diseases and pests in nature. It is harder to affect the whole species when there are diverse individuals. If the individuals have different qualities, the species will have the ability to face external agents to avoid their extinction.  For instance, some individuals can survive a disease but others can die of the same disease. If this disease is affecting the specie for quite some time, the whole specie will not die completely. Hence, biodiversity is fundamental to preserve species in an ecosystem.

In conclusion, biodiversity is very important for an ecosystem and for the entire world. This is because it can preserve resources that are offered by nature. It is also necessary to preserve the different species in an ecosystem.