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NEET Exam  >  NEET Test  >  Biology Class 11  >  31 Year NEET Previous Year Questions: The Living World - NEET MCQ

31 Year NEET Previous Questions: The Living World Free MCQ Practice Test


MCQ Practice Test & Solutions: 31 Year NEET Previous Year Questions: The Living World (15 Questions)

You can prepare effectively for NEET Biology Class 11 with this dedicated MCQ Practice Test (available with solutions) on the important topic of "31 Year NEET Previous Year Questions: The Living World". These 15 questions have been designed by the experts with the latest curriculum of NEET 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 15 minutes
  • - Number of Questions: 15

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31 Year NEET Previous Year Questions: The Living World - Question 1
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'X' and 'Y' are the components of Binomial nomenclature. This naming system was proposed by 'Z':   [2023]

Detailed Solution: Question 1

In the binomial nomenclature system proposed by Carolus Linnaeus, 'X' is the generic name, and 'Y' is the specific epithet, which together uniquely identify a species.

31 Year NEET Previous Year Questions: The Living World - Question 2
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An important criterion for modern day classification is

[1991]

Detailed Solution: Question 2

Taxonomy is a branch of biology, which deals with the study of the collection, identification, nomenclature and classification of living organisms. The basis of classification is by the comparison of the similarities and differences of the morphological, anatomical, physiological and some other characteristics of the organism. 

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31 Year NEET Previous Year Questions: The Living World - Question 3
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Sequence of taxonomic categories is

[1992]

Detailed Solution: Question 3

Option C is correct.

The standard taxonomic sequence from a higher to a lower rank (using Division for plants and Phylum for animals) is: Division → Class → Order → Family → Tribe → Genus → Species.

Tribe is an intermediate and optional rank placed between Family and Genus; it is used when a family contains many genera and subdivision is helpful (commonly used in botany and entomology).

Option C lists the ranks in the correct higher-to-lower order with Tribe correctly positioned between Family and Genus, so it is the correct choice.

31 Year NEET Previous Year Questions: The Living World - Question 4
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Binomial nomenclature means

[1993]

Detailed Solution: Question 4

 Binomial Nomenclature means the scientific name of any organism consist of a generic epithet and a specific epithet. Generic name starts with capital letter and specific name with small letter. Both the names are written in Italics. Or underlined in manuscripts.

Topic in NCERT: Nomenclature

Line in NCERT: "This system of providing a name with two components is called Binomial nomenclature."

31 Year NEET Previous Year Questions: The Living World - Question 5
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Binomial nomenclature was introduced by

Detailed Solution: Question 5

The adoption by biologists of a system of strictly binomial nomenclature is due to Swedish botanist and physician Carl von Linne, more commonly known by his Latinized name Carl Linnaeus (1707–1778).

Topic in NCERT: Binomial Nomenclature

Line in NCERT: "This naming system given by Carolus Linnaeus is being practised by biologists all over the world."

31 Year NEET Previous Year Questions: The Living World - Question 6
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Practical purpose of taxonomy or classification is to:                                                                                                                                                                                           [AIPMT - 1999]

Detailed Solution: Question 6

The primary practical purpose of taxonomy or classification is to facilitate the identification of unknown species. By organizing organisms into categories based on shared characteristics, scientists can easily identify and categorize new species.
While taxonomy also helps understand the evolutionary history (Option C) and origin (Option B) of organisms, these are secondary objectives. Identifying medicinal plants (Option D) is an application of taxonomy, but not its primary purpose.

31 Year NEET Previous Year Questions: The Living World - Question 7
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House fly belongs to _______ family.  [2023]

Detailed Solution: Question 7

The house fly belongs to the Muscidae family, which is characterized by flies typically associated with humans and human habitations.

31 Year NEET Previous Year Questions: The Living World - Question 8
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In the taxonomic categories which hierarchical arrangement in descending order is correct in the case of animals?  [NEET 2022]

Detailed Solution: Question 8

The correct descending order of taxonomic categories in case of animals is:

Kingdom → Phylum → Class → Order → Family → Genus → Species

31 Year NEET Previous Year Questions: The Living World - Question 9
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Which one of the following belongs to the family Muscidae?  [NEET 2021]

Detailed Solution: Question 9

Muscidae are commonly known as house flies or stable flies. These are found worldwide in distribution and contain almost 4,000 described species in over 100 genera.

  • Anacardiaceae: It is famous as the cashew family or sumac family. Anacardiaceae include numerous genera, like cashew (in the type genus Anacardium), mango, poison ivy, poison oak.

  • Hominidae: Hominidae family is one of the two living families of the ape superfamily Hominoidea. This family includes apes like orangutans (genus Pongo), the gorillas (Gorilla), and the chimpanzees as well as human beings (Homo).

  • Poaceae: This family is a large and nearly ubiquitous family of monocotyledonous flowering plants known as grasses. This family includes the cereal grasses, bamboos, and the grasses of natural grassland.

Topic in NCERT: TABLE 1.1 Organisms with their Taxonomic Categories

Line in NCERT: "Housefly Musca Muscidae Diptera Insecta Arthropoda domestica"

31 Year NEET Previous Year Questions: The Living World - Question 10
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Study the four statements (A - D) given below and select the two correct ones out of them.

(A) Definition of biological species was given by Ernst Mayr.

(B) Photoperiod does not affect reproduction in plants.

(C) Binomial nomenclature system was given by R.H. Whittaker.

(D) In unicellular organisms, reproduction is synonymous with growth.

The two correct statements are:     [NEET 2016]

Detailed Solution: Question 10

(A) Definition of biological species was given by Ernst Mayr. - This statement is correct. Ernst Mayr is indeed famous for his contributions to the biological species concept, which defines a species as a group of individuals that actually or potentially interbreed in nature.

(B) Photoperiod does not affect reproduction in plants. - This statement is incorrect. Photoperiod, or the length of day and night, significantly affects reproduction in many plants. It influences flowering time, which is a critical part of the reproductive process in plants.

(C) Binomial nomenclature system was given by R.H. Whittaker. - This statement is incorrect. The binomial nomenclature system was introduced by Carl Linnaeus, not R.H. Whittaker. R.H. Whittaker is known for proposing the five-kingdom classification system.

(D) In unicellular organisms, reproduction is synonymous with growth. - This statement is correct. In unicellular organisms, reproduction through cell division is essentially a form of growth, as one cell divides to become two, increasing the population size.

Therefore, the two correct statements are A (Definition of biological species was given by Ernst Mayr) and D (In unicellular organisms, reproduction is synonymous with growth), making the correct answer:  A and D

31 Year NEET Previous Year Questions: The Living World - Question 11
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Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature?     [NEET 2016]

Detailed Solution: Question 11

  • Binomial nomenclature (also called binomial nomenclature or binary nomenclature) is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages.

Topic in NCERT: Nomenclature

Line in NCERT: "Biological names are generally in Latin and written in italics."

31 Year NEET Previous Year Questions: The Living World - Question 12
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The common characteristics between tomato and potato will be maximum at the level of their: [NEET 2013]

Detailed Solution: Question 12

  • Tomato: Solanum lycopersicum

  • Potato: Solanum tuberosum
    Both belong to the family Solanaceae.

Although they share the same genus (Solanum), NEET considers the family level as the correct answer because the question compares two different species, and maximum common characteristics among different species are generally found up to the family level in the classification hierarchy.

Why other options are wrong:

  • (a) Genus: Too specific. Similarities at the genus level apply mainly to organisms that are very closely related species. NEET interprets “maximum similarities between tomato and potato” in a broader sense, as both are economically important but distinct plants; hence the family level is considered.

  • (c) Order: Higher level than family, so fewer common characteristics.

  • (d) Division: Much broader category (includes many unrelated plants); very few common features at this level.

Final Answer: Family (Solanaceae) – because this level includes both tomato and potato and shows the greatest number of shared characteristics among them compared to order or division.

31 Year NEET Previous Year Questions: The Living World - Question 13
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What is the specific epithet for the species belonging to the genus Panthera?

Detailed Solution: Question 13

The specific epithet for the species belonging to the genus Panthera is tigris. The complete scientific name for this species is Panthera tigris, commonly known as the tiger.

Topic in NCERT: Genus

Line in NCERT: "Panthera has another specific epithet called tigris"

31 Year NEET Previous Year Questions: The Living World - Question 14
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Species are considered as: [2003]

Detailed Solution: Question 14

C is correct.

  • Species is recognised as the basic unit of biological classification and is treated as a taxonomic rank.

  • A standard biological concept describes a species as a group of organisms capable of interbreeding and producing fertile offspring, though other criteria (morphology, genetics, ecology) are also used.

  • Ranks below species exist, for example subspecies, varieties or local races; therefore species are not strictly the lowest units of classification.

  • For this reason, option B is incorrect. Option A is partly true but phrased weakly; option C correctly states that species are real and basic units of classification, so it is the best choice.

Final answer: C.

31 Year NEET Previous Year Questions: The Living World - Question 15
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The practical purpose of the classification of living organisms is to: [1999]

Detailed Solution: Question 15

  • Biological classification is the scientific arrangement of organisms in a hierarchical series of groups and subgroups on the basis of similarities and differences in their traits.
  • It helps in building evolutionary pathways and in identifying new organisms.
  • The practical purpose of the classification of living organisms is to facilitate the identification of unknown organisms.
  • It helps in building evolutionary pathways and in identifying new organisms.

Topic in NCERT: Classification

Line in NCERT: "Classification is the process by which anything is grouped into convenient categories based on some easily observable characters."

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This test contains 15 MCQs on 31 Year NEET Previous Year Questions: The Living World with detailed solutions for each question. It is part of the Biology Class 11 course on EduRev, designed to align with the current NEET syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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