An ecosystem is a group of animals, plants and living things along with their environment. Every ecosystem has two main parts, living things and non living things. Animals plants and microrganisms are the living things in the ecosystem. The non living things in the ecosystem are rocks, soil, minerals, water and energy. All living things need the ecosystem to live and survive. Living things need the ecosystem for shelter, food,and water. A food chain shows us what animals eat and how they get energy. Carnivores eat herbivores and herbivores eat plants. Plants make food for animals from sun light by photosynthesis.The food web is when one animl eats a other animal and blod sugar gets past on. When the first animal gets eaten the animal that eate it has the blod sugar that the other animal had befor it got eaten.