Quick practice
Question 1 of 5
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?
A
2 and 3
B
1 and 4
C
1 and 2
D
3 and 4
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