Understanding Food Chains and Food Webs

What is the primary role of plants in a food chain?

• They are prey.

• They are producers.

• They are predators.

• They are consumers.

Which of the following is NOT a consumer in a food chain?

• Caterpillar

• Fox

• Rabbit

• Grass

In a food chain, what term describes animals that are hunted and eaten?

• Prey

• Predators

• Producers

• Consumers

Which of the following is an example of a predator in a food chain?

• Grass

• Rabbit

• Fox

• Caterpillar

How does a food web differ from a simple food chain?

• It is a linear sequence.

• It has no producers.

• It shows multiple feeding relationships.

• It includes only plants.

What is the top predator in the given food web example?

• Killer Whale

• Elephant Seal

• Penguin

• Squid

What is the term for the effect of removing a species from a food web?

• Ecosystem balance

• Food chain simplification

• Interruption

• Predator-prey cycle

What happens to the snake population if the number of toads decreases?

• It decreases.

• It becomes extinct.

• It remains the same.

• It increases.

What is the consequence of using pesticides on crickets in a food chain?

• Decrease in toad population

• Increase in snake population

• Increase in cricket population

• No effect on the ecosystem

Why is it important to maintain each species in an ecosystem?

• To ensure biodiversity.

• To increase the number of predators.

• To reduce the number of prey.

• To eliminate producers.