NEET · Biology · Class 11The Living World — NEET Biology MCQs
30 questions written by hand against the NCERT chapter. Every wrong option is explained, not just the right one.
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Sample questions from this chapter
Why is classification indispensable for studying the living world?
- It organises vast diversity into convenient groups for systematic study. ✓
- It assigns organisms to permanent groups using body size alone.
- It replaces descriptions with local names familiar in each region.
- It proves that all members of a kingdom possess identical characters.
Answer: A. Classification makes millions of diverse organisms manageable by grouping them through shared characters. The size-only idea is tempting because simple visible traits were used in early artificial schemes, but one trait cannot support modern classification.
Why not B: This reduces modern classification to one conspicuous artificial character.
Why not C: Local names create ambiguity; standard scientific naming addresses it.
Why not D: Broader taxa contain diversity and share fewer, not identical, characters.
A school groups the same pupils by age for sport and by language for a cultural event. Which taxonomic principle does this model?
- Every organism must occupy only one convenient group.
- A useful classification must always be based on ancestry.
- Groups can be formed using selected characters suited to the purpose. ✓
- A category remains valid only when every member is identical.
Answer: C. Classification groups entities into convenient categories on the basis of selected observable characters. The ancestry option is tempting because systematics considers evolution, but the school example specifically illustrates purpose-dependent grouping.
Why not A: Organisms occupy nested taxa, and grouping can depend on the comparison being made.
Why not B: Modern systematics uses ancestry, but ordinary classification can illustrate chosen observable criteria.
Why not D: Classification depends on shared diagnostic features, not complete identity.
Assertion (A): A scientific name can be applied reliably only after the organism is correctly described and recognised.
Reason (R): Identification establishes the organism to which an accepted name is attached.
- Both A and R are true, and R is the correct explanation of A. ✓
- Both A and R are true, but R is not the correct explanation of A.
- A is true, but R is false.
- A is false, but R is true.
Answer: A. Both statements are true, and identification explains why nomenclature requires prior correct description and recognition. Option B is tempting when the two processes are memorised as separate vocabulary rather than as linked steps.
Why not B: Students may know both definitions but miss that recognition is precisely what makes naming reliable.
Why not C: This treats identification as the creation of a name rather than the matching of an organism.
Why not D: This accepts identification while overlooking that nomenclature depends on it.
These are 3 of the 30 questions in the test. Take the full chapter test →
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Every NCERT question in this chapter is solved, free: NCERT solutions — The Living World →
Other NEET Biology chapters
Biological ClassificationPlant KingdomAnimal KingdomMorphology of Flowering PlantsAnatomy of Flowering PlantsStructural Organisation in Animals
All 32 chapters →
Questions
How many NEET questions are there on The Living World?
This chapter test has 30 questions — 10 easy, 14 medium and 6 hard — all written against the NCERT Class 11 chapter.
Is this NEET Biology chapter test free?
Yes. Every chapter test is free with no login. The only paid thing on the site is the full-length 90-question Biology mock and its all-India rank.
Do the questions explain the wrong options?
Yes — every distractor carries its own explanation naming the specific misconception that makes a student pick it. That is the part most question banks skip, and it is the part that changes your next attempt.