A typical food chain will begin with an autotroph and went over numerous heterotrophs till they move to an top predator. Once the energy drifts from the structure it becomes reprocess for upcoming use in additional organisms. Autotrophs get energy and nutrients by connecting to the sunlight through photosynthesis (photoautotrophs) or, more rarely, obtain chemical energy through oxidation (chemoautotrophs) to make organic substances from inorganic ones. Autotrophs do not consume other organisms; they are, however, consumed by heterotrophs.
The word echinodermata is Greek which literally means "Spiny Skin". Echinodermata is a phylum under kingdom animalia. Not all of them have spiny skins, but most of them do. Other characteristics would be their radially symmetric body. They have appendages that grow outward from the center. Examples of echinoderms would be sea stars and sea urchins.
eutrophication is just a bunch of algae in a pond or source of water. pollution is bad materials in the air. smoke and algae are substances in an environment.
