From the food we eat to the air we breathe, each plant, animal, and micro-organism plays an essential role in an ecosystem.
Different species of plants or animals that are threatened by possible extinction due to a rapid fall in the population are referred to as endangered species. The cause for endangered species can vary from loss of habitat to the spread of disease. All species are important and play a role in the essential biodiversity of an ecosystem. Biodiversity, the variety of life on earth, is essential for the survival of all organisms on the earth, including humans. From the food we eat to the air we breathe, each plant, animal, and micro-organism plays an essential role in an ecosystem.