Ecosystems: Lesson Seven

Part One: Video Lesson

Part Two: Practice Questions

1. Producers are dependent on:

A. consumers for energy
B. sunlight for energy
C. green plants for food.

Answer:B. sunlight for energy

2. An aquarium with tropical herbivorous fish, aquatic plants, and algae sits in a third grade classroom. Which of the statements is true?

A. It is a self-sustaining ecosystem because the fish rely on students to feed it.
B. It replicates a natural ecosystem because it has a balance of producers and consumers.
C. It is symbolic of a natural ecosystems because the producers rely on consumers.

Answer: B. It replicates a natural ecosystem because it has a balance of producers and consumers.

3. Read the scenario below and then answer the question that follows.

In their natural habitat, fox eat rabbits, who eat grass, which is dependent on sunshine to produce energy.

Which of the following might you conclude about the scenario?

A. In the woodland ecosystem fox are consumers.
B. In the woodland ecosystems, rabbits control the population of fox because they are producers.
C. Ultimately the sunlight is the biggest consumer.

Answer: A. In the woodland ecosystem fox are consumers.