UPSC PRELIMS · GEOGRAPHY · MARINE PRIMARY PRODUCERS
Consider the following kinds of organisms: 1. Copepods 2. Cyanobacteria 3. Diatoms 4. Foraminifera Which of the above are primary producers in the food chains of oceans?
Take a breath. Choose one. Press A–D on your keyboard if you like.
EXPLANATION
Cyanobacteria and diatoms are primary producers in marine food chains.
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