Food Chain and Ecosystem Quiz

What is a food chain? (What does food chain mean?)

• A food chain is an environment and all of the organisms that live within it.

• A food chain is a relationship in which energy is transferred from one organism to another, because one thing is eating another. It can be created by asking, “What does this animal eat?” and “What is this animal eaten by?”

• A food chain is an animal or organism that breaks down dead plants and animals.

Which of the following correctly represents a 3 part food chain with arrows facing the correct direction?

• Grass -> Cow -> Human

• Human -> Cow -> Grass

• Cow -> Grass -> Human

• Grass -> Human -> Cow

What do plants need to survive? Where do they get their energy? (Circle all that apply.)

• Sunlight

• Water

• Oxygen

• Nutrients

What is a decomposer?

• A decomposer is an environment and all of the organisms that live within it.

• A decomposer is a relationship in which energy is transferred from one organism to another, because one thing is eating another. It can be created by asking, “What does this animal eat?” and “What is this animal eaten by?”

• A decomposer is an animal or organism that breaks down dead plants and animals.

What is an ecosystem?

• An ecosystem is an environment and all of the organisms that live within it.

• An ecosystem is a relationship in which energy is transferred from one organism to another, because one thing is eating another. It can be created by asking, “What does this animal eat?” and “What is this animal eaten by?”

• An ecosystem is an animal or organism that breaks down dead plants and animals.

In a pond ecosystem, how do plants, animals, and decomposers work together? Choose the correct example.

• Plants provide oxygen and food, animals consume plants, and decomposers break down dead matter.

• Animals provide oxygen, decomposers consume plants, and plants break down dead matter.

• Decomposers provide food, plants consume animals, and animals break down dead matter.

Fill in the blank: Plants breathe in ________________________ and exhale ________________________

• carbon dioxide and exhale oxygen.

• oxygen and exhale carbon dioxide.

• nitrogen and exhale oxygen.

• hydrogen and exhale carbon dioxide.

Fill in the chart: What is the missing value in the chart?

• 10

• 20

• 30

• 40

What is photosynthesis?

• A process in which plants use oxygen.

• A process in which plants make their own food.

• A process in which plants decompose dead matter.

• A process in which plants rely on decomposers.

What is a predator?

• An animal that eats plants and animals.

• An animal that hunts another animal for food.

• An animal that is hunted for food.

• A chain of living things eating one another.