Solved UPSC CDS/OTA Question
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Q · BiodiversityMedium · 45s
Which one of the following is the most species-rich phylum in the animal kingdom?
TopicBiodiversity
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Arthropoda is the largest phylum, containing insects, spiders, crustaceans, etc. It accounts for about 80% of all known animal species.
Final Answer: Option C - Arthropoda