In this video, the teacher explains how matter is constantly recycled in ecosystems. She shows examples of how matter moves from plants to animals, and from one organism to another through consumption. She also discusses the role of...

How would a Polar Bear do if you put it in the desert? Not well. But why? Why can't anything live anywhere? Well, this has to do with Habitats and how animals (including humans) are suited for living in one place over another. In this...

An ecosystem is a complete community of living organisms and the nonliving materials of their surroundings. This includes plants, animals, microorganisms and their environment, such as soil, rocks, and minerals. An Ecosystem also...