1
UPSC Civil Service Prelims Paper I 2021 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
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Which one of the following is a filter feeder?

A
Catfish
B
Octopus
C
Oyster
D
Pelican
2
UPSC Civil Service Prelims Paper I 2021 (General Studies)
MCQ (Single Correct Answer)
+2
-0.66
Change Language

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
1 and 2
B
2 and 3
C
3 and 4
D
1 and 4
UPSC Civil Service Subjects
Comprehension
Data Interpretation and Sufficiency
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