Final answer:
The correct food web flow is phytoplankton to zooplankton to fish to bacteria, representing energy flow from producers to consumers to decomposers.
B is correct
Step-by-step explanation:
The question asks which sequence best describes the flow of energy in a food web that includes zooplankton, bacteria, and phytoplankton. The correct answer is B. phytoplankton, zooplankton, fish, bacteria.
In this food web, the phytoplankton are the producers, using photosynthesis to produce organic material. Zooplankton, which are primary consumers, then consume the phytoplankton. Fish, which are secondary consumers, eat the zooplankton. Lastly, bacteria, which are decomposers, break down waste and dead organisms, including the fish.