Ecosystem

An organism that can make its own food

• decomposer

• producer

• consumer

Breaks down and feeds on the remains of other organisms

• decomposer

• consumer

• producer

Interacting food chains found in an ecosystem

• food web

• food chain

• predator

An animal that hunts and eats other animals for energy

• prey

• predator

• decomposer

These organisms cannot make their own food; they must eat something for energy

• decomposer

• consumer

• producer

Choose the producer.

• rock

• tree

• cow

• bird

Choose the decomposer.

• grass

• elephant

• bacteria

• bird

Choose the consumer.

• mushroom

• horse

• tree

• grass

Where does the food chain START?

• with consumers that eat grass

• with the sun giving energy to producers

• with the sun giving energy to consumers

• with consumers eating other consumers

Explain the flow of energy in this food chain (who passes energy to who).

• The hawk gives energy to the snake. The snake gives energy to the mouse. The mouse gives energy to the grasshopper who gives energy to the grass.

• The mouse gives energy to the hawk. The snake gives energy to the grasshopper. The grass gives energy to the snake.

• The grass gives energy to the grasshopper. The grasshopper gives energy to the mouse. The mouse gives energy to the snake who gives energy to the hawk.