ABSTRACT
Biodiversity encompasses fluctuation in the living beings that surviving in all different kinds of the ecosystem and ecological complex to which they belong. By studying the biodiversity in relation to their evolution and ecology, we can comprehend the importance of past theories and give a more extensive comprehension of life existence on Earth. Infectious agents obtain their essential nutrients and energy by parasitization of higher life forms. Effect of climatic variation on infectious diseases is resolved to a great extent by the transmission cycle of each and every pathogen. Climate change can be defined as a long-term change of the weather condition, including variations in the average weather or in the dissemination of weather conditions around the average. The biodiversity on the earth needed to manage a changing climate and need to adjust to increased temperature and precipitation, which has been a noteworthy impact on evolutionary changes that created the plant and animal species.
