The number of trophic levels between primary producers and large consumers in coastal waters is usually:

Question

Quizplus · Accepted Answer

In coastal waters, the trophic levels usually include primary producers (phytoplankton), primary consumers (zooplankton), secondary consumers (small fish and invertebrates), and tertiary consumers (large fish and marine mammals). This constitutes a chain of four trophic levels between primary producers and large consumers. Therefore, choice D is incorrect as it implies the presence of a fifth trophic level, which is not typical of coastal waters.

The Number of Trophic Levels Between Primary Producers and Large