Wetland Ecosystem

wetland A wetland is an area of land where water covers the soil permanently or seasonally. Wetlands are transitional ecosystems between terrestrial (land) and aquatic (water) environments. They are among the most biologically productive ecosystems in the world. Wetland Ecosystem…

Human Digestive System

Human Digestive system

The human digestive system is a group of organs that break down food into simple nutrients. These nutrients are absorbed into the blood and used by the body for energy, growth, and repair. Undigested waste is removed from the body…