Answer key (D) & worked solution
Correct answer: Option D
The Living World carries 1.9 of 100 Botany marks in NEET by past-paper share: 15 of the 793 tagged NEET Botany PYQs in the ViJEEta bank (NEET 2013–2026). It ranks 20 of 21 Botany chapters.
How the weight is computed: this chapter's tagged NEET PYQs divided by all tagged NEET Botany PYQs in the bank (15 of 793), times 100, with repeated questions counted once. The bank does not store the year of each NEET question, so none is printed. Computed from the bank at build time. Updated 19 Oct 2026.
16 facts the paper keeps asking, each with how it is asked. Copy it onto one page of your notebook: that page is this chapter's handbook.
Species known and described so far: – million; new ones keep being found, even in old areas.
Asked as: "Number of species known and described is approximately…?"
Identification means describing an organism correctly so we know which organism a name belongs to. Nomenclature means giving it a standard name used everywhere in the world.
Asked as: "Which process must come before nomenclature?"
Plant names follow ICBN (International Code for Botanical Nomenclature). Animal names follow ICZN (International Code of Zoological Nomenclature).
Asked as: Match the code with plants or animals.
Binomial nomenclature (Carolus Linnaeus) gives every name two parts: the generic name and the specific epithet. Example: Mangifera indica (genus Mangifera, epithet indica).
Asked as: "In Mangifera indica, 'indica' represents…?"
Scientific names are Latin or Latinised and printed in italics. When handwritten, each word is underlined separately. The genus starts with a capital letter and the epithet with a small letter.
Asked as: "Which is correctly written: Mangifera Indica / Mangifera indica?"
The author's name goes at the end, abbreviated: Mangifera indica Linn. This means Linnaeus described the species first.
Asked as: "What does 'Linn.' after a scientific name indicate?"
Taxonomy is built on four basic processes: characterisation, identification, classification and nomenclature. Modern taxonomy uses external and internal structure, cell structure, development and ecological information.
Asked as: "Which is NOT a basis of modern taxonomic studies?"
Systematics comes from the Latin 'systema', meaning systematic arrangement. Linnaeus titled his book Systema Naturae. Systematics takes evolutionary relationships into account.
Asked as: "Which branch considers evolutionary relationships between organisms?"
The hierarchy runs kingdom phylum (division in plants) class order family genus species. Species is the lowest category for all organisms.
Asked as: Pick the correct ascending sequence (e.g., Species Genus Order Phylum).
A genus is a group of closely related species. Panthera includes leo (lion), tigris (tiger) and pardus (leopard); cats are in Felis. Solanum includes tuberosum (potato), melongena (brinjal) and nigrum.
Asked as: "Potato and brinjal belong to the same…?"
Families are characterised by both vegetative and reproductive features. Solanum, Petunia and Datura are in Solanaceae. Panthera and Felis are in Felidae, while the dog is in Canidae.
Asked as: "Petunia and Datura belong to family…?"
Order Polymoniales contains Convolvulaceae and Solanaceae, grouped mainly on floral characters. Order Carnivora contains Felidae and Canidae.
Asked as: "Solanaceae is placed in order…?"
Class Mammalia contains order Primata (monkey, gorilla, gibbon) along with order Carnivora (tiger, cat, dog).
Asked as: "Gibbon and gorilla belong to order…?"
Phylum Chordata (fishes, amphibians, reptiles, birds, mammals) is defined by a notochord and a dorsal hollow neural system. In plants, the matching category is Division.
Asked as: "Common feature placing fishes and mammals in one phylum?"
Moving from species up to kingdom, the number of shared characters decreases. Higher categories also make relationships harder to work out.
Asked as: "Members of which taxon share the maximum characters?"
Table 1.1 gives four examples: Man (Homo sapiens): Hominidae, Primata, Mammalia, Chordata. Housefly (Musca domestica): Muscidae, Diptera, Insecta, Arthropoda. Mango: Anacardiaceae, Sapindales, Dicotyledonae, Angiospermae. Wheat (Triticum aestivum): Poaceae, Poales, Monocotyledonae, Angiospermae.
Asked as: "Order of housefly / family of mango / family of wheat is…?"
Mango and wheat share the same division (Angiospermae) but belong to different classes (Dicotyledonae vs Monocotyledonae). Also, mango's order is Sapindales, not Polymoniales. Polymoniales is the order for Solanaceae.
8 real previous-year questions from this chapter, as printed in the paper, each with its worked solution. Answer the first one here with no sign-in.
Correct answer: Option D
Correct answer: Option C
Correct answer: Option D
Correct answer: Option A
Correct answer: Option D
Correct answer: Option A
Correct answer: Option D
Correct answer: Option B
All 4 topics, by tagged PYQs, then practice questions. Counted from the bank. Updated 19 Oct 2026.
| Topic | PYQs | Practice questions |
|---|---|---|
| Taxonomic Categories | 8 | 163 |
| Diversity in the Living World | 6 | 89 |
| What is Living? | 1 | 29 |
| Miscellaneous Examples | 0 | 38 |
Unknown is not zero. Until you answer at least 3 graded questions in The Living World, ViJEEta shows – instead of a zero or a 50% default. Book exercises can raise chapter mastery up to 0.60, adaptive practice up to 0.75, and only a timed chapter test or mock can certify 0.80 and above.
Every chapter test is 25 questions. It starts at moderate difficulty and adapts after each saved answer. If you open a solution before answering, that attempt earns no credit, so your mastery stays honest.
Start the The Living World test