Biotic Factors are factors created by a living thing or any living component with an environment in which the action of the organism affects the life of another organism, for example a predator consuming its prey.
Producers - make their own food
Primary Consumers - consume the plants
Secondary Consumers - catch their prey (primary consumers) and and consume them
Tertiary Consumers - top consumer
Decomposers - break down the remnants of dead organisms
Grassland, Savanna >