Question

The primary producers in an ocean grazing food web are usually ________.

a) Phytoplankton
b) Zooplankton
c) Fish
d) Seabirds

Answer 1

Phytoplankton are the primary producers in an ocean grazing food web, initiating the flow of energy through the ecosystem as they capture sunlight to produce glucose through photosynthesis.

Step-by-step explanation:

The primary producers in an ocean grazing food web are usually phytoplankton. Phytoplankton are tiny photosynthetic organisms that are the most common producers in oceans and lakes. These organisms capture the energy from the sun and convert it to glucose through photosynthesis, functioning as the foundation of food chains in aquatic ecosystems. For example, a simple marine food chain could look like this: phytoplankton → zooplankton → fish → shark, with phytoplankton initiating the flow of energy through the ecosystem as the producers. The health and stability of marine life, like fish and seabirds, rely on the abundance and diversity of phytoplankton populations.