Food Chain and food web

In this food web a beetle is a...

• carnivore

• decomposer

• herbivore

• producer

1The diagram represents the energy flow through a food chain.           

What provides the energy source (X) for this food chain?

• decomposers

• herbivores

• plants

• sunlight

What happens to energy after it has flowed through a food chain?   

• It is lost as heat.

• It is recycled.

• It is stored as carbohydrate.

• It is used to power metabolic processes.

Which statement about food chains must be correct?

• Producers are the final stage in a food chain.

• There are more producers than consumers in a food chain.

• There is only one type of herbivore in a food chain.

• The third member of a food chain is a herbivore.

The diagram shows part of a food web. Which organism is a producer?

• A

• B

• C

• D

The diagram shows a food web from North America. If the population of insects decreases, which other population will decrease the most?

• badgers

• lizards

• sagebrush

• squirrels