Question

What might happen to the food web below if the number of phytoplankton drastically decreased?

Answer 1

The correct answer for the given question above would be, the entire food web would be affected. When the number of phytoplankton drastically decreased, this would affect the entire food web. Phytoplanktons are considered as producers because they can produce their own energy through photosynthesis. When these planktons decrease, this would affect the other consumers in the food web such as the small fishes.

Answer 2

The food web will be entirely affected if the number of the phytoplankton is drastically decreased.  

Explanation:

Phytoplanktons are capable to produce their food in the food web so they are the producers of food web. Primary consumers are dependent on the producers as they feed producers and the secondary consumers are dependent on the primary consumers and the tertiary consumers are dependent on the secondary consumers. If the producers are decreased so the consumption of food from the beginning will be decreased and the food chain will be hampered.