12.2 Flashcards
Producers are the source of what
All the food and the ecosystem
What is an organisms energy role determine by
How it obtains food and how it interacts with other organisms
Producers make their own food by
Capturing the energy of sunlight
How do consumers obtain energy
By feeding on other organisms
Herbivores eat
Plants
Carnivores eat
Only animals
Omnivores eat
Plants and animals
Scavenger eats
Carnivore that feeds on bodies of dead organisms
Decomposers breakdown
Waste and dead organisms and return the new materials to the ecosystem
Energy moves through an ecosystem when
One organism eats another
What is a food chain
Series of events to which one organism eats another and obtains energy
Food web
Consist of many overlapping foodchains in an ecosystem more realistic than food chain
First level consumers feed
Directly on producers
Second level consumers eat
First level consumers