Which of the following organsims are known as chief producers in the oceans ?

Options

A. Cyanobacteria
B. Diatoms
C. Dinoflagellates
D. Euglenoids

Answer

B

Explanation

Diatoms are chief producers in the oceans and they contribute 40% of marine primary productivity. They constitute a major group of unicellular eukaryotic microalgae and are among the most common types of phytoplanktons. The other given organisms also exhibit autotrophic mode of nutrition.