Food Chains and Food Webs

How are the living creatures in an ecosystem linked?

• By what they eat

• By how they breathe

• By their size

• By their species

What can you infer from the fact that the disappearance of just one species can disrupt an entire food chain?

• Every food chain depends entirely on a single species

• Food chains are extremely fragile

• Food chains can regenerate on their own

• Food chains would not exist without humans

How is a food web different from a food chain?

• Food webs contain only producers, not consumers

• Food webs do not include decomposers

• Food webs contain many different, linked food chains

• Food webs exist only in aquatic environments

Which of the following organisms is a producer?

• Bear

• Human

• Mushroom

• Corn

Through what process do producers make their own food?

• Parthenogenesis

• Photosynthesis

• Meiosis

• Mitosis

What role do humans play in the food web?

• Producer

• Consumer

• Decomposer

• Converter

How might a lack of sunlight disrupt the food web?

• It would cause consumers to consume less

• It would prevent decomposers from decomposing matter

• It would prevent producers from producing nutrients

• It would not disrupt the food web at all

How are primary consumers different from secondary consumers?

• Primary consumers eat only plants; secondary consumers eat other consumers

• Primary consumers eat other consumers; secondary consumers eat only plants

• Primary consumers eat plants and other consumers; secondary consumers eat plants and decompose matter

• Primary consumers eat plants and decompose matter; secondary consumers eat plants and other consumers

Which category is a fungi most likely to fall into?

• Primary consumer

• Secondary consumer

• Decomposer

• Producer

Sheep are herbivorous. What can you infer from this?

• They are primary consumers

• They are producers

• They are secondary consumers

• They are decomposers