Background:This is an Eco-sphere. It is a closed self-sustaining ecosystem that contains shrimp, bacteria, and algae.

The brown ?branch? that you see in the photo is plastic and provides a surface on which the bacteria live. All the populations in this ecosystem are able to live indefinitely without overpopulating or contaminating their environment. A small Eco-sphere typically lives 2-7 years, but the largest that were first manufactured in the 1970s are still alive.

Construct a diagram that illustrates how the Eco-sphere functions. Your diagram should indicate how all the organisms get their requirements for living in the ecosystem. ?Requirements? may include nutrients, food, oxygen, carbon dioxide, etc.