Food Chains and Food Webs

Bacteria, fungi, and worms typically serve what role in an ecosystem?

• herbivore
• carnivore
• omnivore
• decomposer

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What is a producer?

• an organism that gets energy from eating other organisms
• an organisms that uses sunlight to make its own food
• an organism that gets energy from eating dead organisms, non-living material or waste
• an organism that uses chemical energy to make its own food

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Where does the energy start in this food chain?

• Plant
• Sun
• Deer
• Wolf

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Which of these completes the food chain correctly?

• a rock

• a fox

• a plant

• an egg

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Which of these is a possible food chain for this environment?

• Sun → grass → fly → frog

• frog → fly → grass → Sun

• Sun ← grass ← fly ← frog

• Sun → fly → frog → snake

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_______are animals that eat only plants.

• herbivore
• carnivore
• omnivore

a _______ shows how each living thing gets food and how nutrients and energy are passed from organism to organism. 

• ecosystem
• food chain

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What are the organisms that break down dead stuff?

• Producers
• Consumers
• Decomposers
• Organisms

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Which of these organisms would receive energy from the snake?

• Plant
• Rabbit
• Mouse
• Hawk

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What is the effect of removing prey from a food chain?

• All predators above them will die or suffer.

• The prey's predator will die or suffer, but everybody else should be fine.

• The prey will always, eventually, come back

• The predators population will grow

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