Food web
Chains joined into a network.
More than one eater
A grasshopper is eaten by a frog. It may also be eaten by a bird. A frog may be eaten by a snake or by a bird.
What do the food chains of an ecosystem form together?
What this lesson covers
The idea
Because each organism may be eaten by two or more types of organisms, the food chains of an ecosystem are interlinked into a network called a food web.
More than one eater
A grasshopper is eaten by a frog. It may also be eaten by a bird. A frog may be eaten by a snake or by a bird.
What do the food chains of an ecosystem form together?
- A network, a food web
- One long straight chain
- A population
Link the chains
Press Next step.
A web of feeding
Each organism may be eaten by two or more types of organisms. So the food chains in an ecosystem are interlinked with each other and form a network called a food web.
Because an organism may be eaten by two or more types of organisms, the food chains are interlinked into a network: a food web.
Notes
Interlinked food chains form a food web.
Check yourself
Interlinked food chains of an ecosystem form a …
A food web forms because each organism may be eaten by …
A single linear sequence showing who eats whom is a …
If one organism is removed from a food web, other organisms in the web …
- food web — correct. Yes!
- food chain. A chain is a single sequence.
- habitat. A habitat is where organisms live.
- only one kind of organism. Then there would only be single chains.
- two or more types of organisms — correct. Yes!
- no one. Most organisms are eaten by something.
- food web. A food web is a network.
- community. A community is all the populations of a habitat.
- food chain — correct. Yes!
- may be affected — correct. Yes!
- are never affected. The chains are interlinked, so others may be affected.
- become producers. They may be affected, but they do not change their type.