Question

2.2 review

1. analyze order the roles of producer, primary consumer, and secondary consumer from highest to lowest trophic level.
2. explain why are decomposers essential to the movement of matter in an ecosystem?
3. apply use figure 2-8 to support or refute the claim that an organism can feed at more than one trophic level.

Explanation:

1.

Trophic levels represent energy - transfer positions. Producers make their own energy, primary consumers eat producers, and secondary consumers eat primary consumers. So the order from highest to lowest is secondary consumer, primary consumer, producer.

Decomposers break down dead organisms and waste, releasing nutrients back into the environment for producers to use, thus facilitating matter - cycling.

If Figure 2 - 8 shows an organism consuming different types of food from different trophic levels (e.g., an omnivore eating plants and animals), it supports the claim. If it shows organisms strictly in one - trophic - level feeding patterns, it refutes the claim.

Answer:

Secondary consumer, primary consumer, producer

2.