Question

this food web is from an ecosystem in serengeti national park, tanzania. which arrows show matter moving from a tertiary consumer to a decomposer? select all that apply. the arrow between the brown shield bug and the african civet the arrow between the ostrich and the fly larva the arrow between the flycatcher and the bacteria

Explanation:

Step1: Identify tertiary consumers

Tertiary consumers eat secondary consumers. In the food - web, flycatcher is a possible tertiary consumer.

Step2: Identify decomposers

Decomposers break down dead organisms. Bacteria and fly larva are decomposers.

Step3: Check arrows

We need to find arrows from tertiary consumers to decomposers. The arrow from flycatcher to bacteria shows matter moving from a tertiary consumer to a decomposer. Also, if we consider some complex food - web relationships where ostrich can be at a high trophic level, the arrow from ostrich to fly larva can also be considered in the context of matter transfer from a relatively high - level consumer to a decomposer. The arrow between brown shield bug and African civet is a transfer between a primary/secondary consumer and a secondary/tertiary consumer, not from a tertiary consumer to a decomposer.

Answer:

the arrow between the ostrich and the fly larva, the arrow between the flycatcher and the bacteria