energy flow in ecosystems vocab Flashcards
producer/autotroph
an organism that can make its own food
consumer/heterotroph
organisms that obtain energy by feeding on other organisms
herbivore
an organism that eats only plants
carnivore
an organism that eats only animals
omnivore
an organism that eats both plant and animals
scavenger
a carnivore that feeds on dead organisms
decomposer
organisms that brack down wastes and return them to their environment
food chain
a series of events ( chains ) in witch one organism eats another
food web
many overlapping food chains in an ecosystems
energy pyramid
a diagram that shows the movement of energy in a food web
photosynthesis
The process in which organisms use water along with sunlight and carbon dioxide to produce food