also called an autotroph

process where organisms use carbon dioxide and water in the presence of sunlight to make oxygen and sugars

process where organisms make sugars from inorganic chemicals

organisms that consume other organisms

another term for heterotroph

organisms which only eat plants

organisms that only eat animals

organisms that eat both plants and animals

feed on plant and animal remains and other dead matter

break down organic matter

a series of steps in which organisms transfer energy by eating and being eater

links all the food chains in an ecosystem together

each step in a food chain or food web

a diagram that shows the relative amounts of energy or matter contained within each level in a food chain or food web

total amount of living tissue within a given trophic level