The Living World — NEET UG practice

21 questions

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Sample questions with solutions

Q1 · 2026

Arrange the following taxonomic categories in ascending order.

(a) Genus (b) Class (c) Order (d) Phylum (e) Family (f) Kingdom (g) Species

Choose the correct answer from the options given below:

  • A.

    (f), (c), (b), (g), (d), (e), (a)

  • B.

    (g), (a), (e), (c), (b), (d), (f)

  • C.

    (a), (c), (d), (g), (f), (b), (e)

  • D.

    (g), (c), (d), (b), (e), (a), (f)

Answer: B

  1. Ascending order means starting from the smallest, most specific taxonomic category and moving toward the largest, most general one.

  2. Recall the standard taxonomic hierarchy taught in classification: Species → Genus → Family → Order → Class → Phylum → Kingdom.

  3. Species (g) is the smallest and most specific unit, so it comes first.

  4. Several similar species are grouped into a Genus (a); several related genera form a Family (e).

  5. Related families are grouped into an Order (c); related orders form a Class (b).

  6. Related classes are grouped into a Phylum (d), and finally, related phyla are grouped into a Kingdom (f), the broadest category.

  7. So the correct ascending sequence is: Species (g) → Genus (a) → Family (e) → Order (c) → Class (b) → Phylum (d) → Kingdom (f).

  8. Hence, the answer is B.

Q2 · 2026

Match List-I with List-II.

List-I A. Family B. Genus C. Class D. Phylum E. Order

List-II I. Sapindales II. Dicotyledonae III. Anacardiaceae IV. Angiospermae V. Mangifera

Choose the correct answer from the options given below:

  • A.

    A-III, B-V, C-II, D-IV, E-I

  • B.

    A-I, B-V, C-II, D-IV, E-III

  • C.

    A-II, B-I, C-III, D-IV, E-V

  • D.

    A-II, B-III, C-V, D-I, E-IV

Answer: A

  1. This question tests whether you can identify the taxonomic rank to which a given name belongs, using the classification of the mango plant as an example.

  2. Mangifera is written as a single italicised word beginning with a capital letter — this is the format used for a Genus name. So, Mangifera (V) matches Genus (B).

  3. Anacardiaceae ends in "-aceae", which is the standard suffix used for Family names in plants. So, Anacardiaceae (III) matches Family (A).

  4. Sapindales ends in "-ales", the standard suffix for an Order name. So, Sapindales (I) matches Order (E).

  5. Dicotyledonae refers to a Class of flowering plants (dicot plants), so it matches Class (C).

  6. Angiospermae here is used to represent the Phylum/Division level (flowering plants), so it matches Phylum (D).

  7. Putting it together: A-III, B-V, C-II, D-IV, E-I.

  8. Hence, the answer is A.

Q3 · 2026

Which one of the following statements is not true about the universal rules of binomial nomenclature?

  • A.

    Biological names are generally in Latin

  • B.

    Both the words in a biological name, when handwritten, are separately underlined or printed in italics

  • C.

    The specific epithet in the biological name starts with a small letter

  • D.

    The first word in the biological name represents the specific epithet, while the second component denotes the genus

Answer: D

  1. Binomial nomenclature is the universal system of naming organisms using two words — the genus name and the specific epithet.

  2. By convention, biological names are written in Latin and are either italicised (when printed) or underlined (when handwritten), making Options A and B correct rules.

  3. The first word of the name is the genus, and it always starts with a capital letter. The second word is the specific epithet, and it always starts with a small letter, making Option C a correct rule.

  4. Option D states the reverse — that the first word is the specific epithet and the second is the genus. This contradicts the actual rule, since the genus always comes first.

  5. Hence, the statement that is not true is Option D, making it the correct answer.

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