Biodiversity and Classification

21 CDS Biology past-year questions from 12 papers, 2018 to 2026, with answers and worked solutions.

About this chapter

Difficulty: 10 easy · 11 moderate.
Most-asked subtopics: Animal Kingdom Classification (12), Kingdom Fungi (6), Plant Kingdom Classification (3).
Updated 20 September 2026.

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CDS · 2026 · CDS (II) 2026 — General Knowledge · Q119Moderate
#1Kingdom Fungi
CDS · 2019 · CDS (II) 2019 — General Knowledge · Q120Moderate
#2Plant Kingdom Classification
CDS · 2019 · CDS (I) 2019 — General Knowledge · Q66Moderate
#3Kingdom Fungi
CDS · 2019 · CDS (I) 2019 — General Knowledge · Q67Moderate
#4Animal Kingdom Classification
CDS · 2019 · CDS (I) 2019 — General Knowledge · Q68Easy
#5Animal Kingdom Classification
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CDS · 2020 · CDS (II) 2020 — General Knowledge · Q91Easy
#6Plant Kingdom Classification
CDS · 2020 · CDS (II) 2020 — General Knowledge · Q92Easy
#7Plant Kingdom Classification
CDS · 2020 · CDS (II) 2020 — General Knowledge · Q93Easy
#8Animal Kingdom Classification
CDS · 2020 · CDS (I) 2020 — General Knowledge · Q15Moderate
#9Animal Kingdom Classification
CDS · 2021 · CDS (II) 2021 — General Knowledge · Q18Moderate
#10Kingdom Fungi
CDS · 2021 · CDS (II) 2021 — General Knowledge · Q28Easy
#11Animal Kingdom Classification
CDS · 2021 · CDS (II) 2021 — General Knowledge · Q29Moderate
#12Animal Kingdom Classification
CDS · 2021 · CDS (I) 2021 — General Knowledge · Q111Moderate
#13Animal Kingdom Classification
CDS · 2022 · CDS (I) 2022 — General Knowledge · Q29Easy
#14Kingdom Fungi
CDS · 2022 · CDS (I) 2022 — General Knowledge · Q30Easy
#15Kingdom Fungi
CDS · 2023 · CDS (II) 2023 — General Knowledge · Q48Easy
#16Kingdom Fungi
CDS · 2025 · CDS (II) 2025 — General Knowledge · Q41Easy
#17Animal Kingdom Classification
CDS · 2025 · CDS (I) 2025 — General Knowledge · Q76Easy
#18Animal Kingdom Classification
CDS · 2018 · CDS (I) 2018 — General Knowledge · Q19Moderate
#19Animal Kingdom Classification
CDS · 2018 · CDS (I) 2018 — General Knowledge · Q21Moderate
#20Animal Kingdom Classification
CDS · 2018 · CDS (I) 2018 — General Knowledge · Q49Moderate
#21Animal Kingdom Classification

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