Our Environment

An ecosystem consists of biotic components

An ecosystem consists of biotic components, which are living organisms, and abiotic components, which are physical factors such as temperature, rainfa

Producers are autotrophs

Producers are autotrophs. Green plants and certain bacteria make food like sugar and starch from inorganic substances using solar energy in the presen

Consumers are heterotrophs that depend directly

Consumers are heterotrophs that depend directly or indirectly on producers for food. They include herbivores, carnivores, omnivores and parasites.

Decomposers are microorganisms such as bacteria

Decomposers are microorganisms such as bacteria and fungi that break down dead remains and waste products into simple inorganic substances that return

A food chain is a sequence

A food chain is a sequence of organisms that eat one another. Each step or level in a food chain is called a trophic level. Producers are at the first