Food Chain CK-12

Energy flow through an ecosystem is __________.

Directional

A food web is also called a food recycle.

FALSE

Food chains are isolated relationships between consumers and producers and cannot intersect with each other. In other words, any given consumer can only eat one type of producer.

FALSE

In a food web, the arrows point from one organism to the organism it eats.

False

According to the food web above, which of the following accurately depicts a food chain from the food web?

Phytoplankton → sand lance → puffin

Food chains explain how energy and matter move through ecosystems.

TRUE

In a food web, links represent

all of the above

A food web is a diagram of feeding relationships that includes multiple intersecting food

chains

Which of the following is an example of a consumer?

fish

What demonstrates the flow of energy and materials through ecosystems in a single pathway?

food chain