Prime objective of this lecture is to present on Environment and Feeding Relationships. Here briefly present on about the different habitats organisms live in; how to describe the environment of different habitats and about the special adaptations that organisms have to help them live in their habitat. Here also briefly discuss on what is a habitat. The place where an organism lives is called a habitat. The word environment is used to describe what a habitat is like. For example, a desert is dry and hot during the day.