Ecology - food chains Flashcards
basic food chain
producer - primary consumer - secondary consumer - tertiary consumer
what is a food chain?
a food chain shows how energy flows from one organism to another in an ecosystem, starting with producers and ending with top predators
what is a producer in a food chain?
a producer is an organism that makes its own food through photosynthesis, such as plants and algae
what is a primary consumer?
a primary consumer is a herbivore that eats producers
what is a secondary consumer?
a secondary consumer is a carnivore or omnivore that eats primary consumers
what is a tertiary consumer?
a tertiary consumer is a predator that eats secondary consumers
what is a decomposer in a food chain?
decomposers, such as fungi and bacteria, break down dead organisms, returning nutrients to the soil
what is the source of energy for most food chains?
the Sun is the primary source of energy for most food chains