5th grading period assessment

Which of the following best defines a food web?

• A linear representation of energy flow from producers to consumers.

• A diagram showing the relationships between different species within an ecosystem.

• A model illustrating the movement of water through various trophic levels.

• A mathematical equation describing predator-prey interactions.

In a food web, organisms that produce their own food through photosynthesis are typically classified as:

• Primary consumers.

• Secondary consumers.

• Producers.

• Decomposers.

Which of the following organisms would likely occupy the highest trophic level in a food web?

• Grasshopper.

• Rabbit.

• Snake.

• Hawk.

Which term best describes an organism that feeds on dead organic matter, breaking it down into simpler substances?

• Producer.

• Decomposer.

• Primary consumer.

• Secondary consumer.

Which of the following correctly represents a typical food chain within a food web?

• Grass → Rabbit → Hawk.

• Grass → Snake → Rabbit.

• Rabbit → Hawk → Grass.

• Hawk → Rabbit → Grass.

What role do apex predators play in a food web?

• They are primary producers.

• They regulate populations of other species.

• They are decomposers.

• They are prey for other species.

In a marine food web, which of the following organism would likely occupy a primary trophic level?

• Tuna.

• Plankton.

• Seal.

• Shark.

Which term describes an organism that consumes both plants and animals?

• Omnivore.

• Herbivore.

• Carnivore.

• Autotroph.

What happens to energy as it moves through successive trophic levels in a food web?

• It decreases.

• It remains constant.

• It increases.

• It fluctuates randomly.

How does a food web differ from a food chain?

• A food web includes multiple interconnected food chains.

• A food chain is more complex than a food web.

• A food web only includes plants and animals.

• A food chain shows only the flow of energy within an ecosystem.