Final answer:
A tropical rainforest has a higher number of trophic levels due to its abundant biodiversity and primary productivity, which sustain a complex food web.
Step-by-step explanation:
Among the given options, a tropical rainforest would be the most likely to have a relatively high number of trophic levels due to its high net primary productivity and diversity of life. Tropical rainforests are found near the equator and are characterized by abundant and seasonal rainfall, stable temperatures and a structurally diverse variety of trees and other vegetation.
This ecosystem supports a wide range of species from primary producers up to tertiary consumers, allowing for multiple trophic levels that facilitate a complex food web.