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Class 11 | CBSE | BIOLOGY
MCQ | COMPLETE SOLUTIONS | LIVING KINGDOM PART -I
MCQs – Diversity in the Living World (Class 11 Biology)
1. The total number of species described so far is approximately
A. 5–6 million
B. 2.5 million
C. 1.7–1.8 million
D. 10 million
Correct Answer: C
2. The term used to describe the variety and variability of living organisms on Earth is
A. Taxonomy
B. Ecology
C. Systematics
D. Biodiversity
Correct Answer: D
3. Each different kind of plant, animal or organism represents a
A. Genus
B. Species
C. Taxon
D. Population
Correct Answer: B
4. The need for scientific naming of organisms arises because
A. Common names are difficult to pronounce
B. Organisms have no fixed characters
C. Common names vary from place to place
D. Scientific names are shorter
Correct Answer: C
5. The system of giving two names to an organism is called
A. Trinomial nomenclature
B. Polynomial nomenclature
C. Binomial nomenclature
D. Monomial nomenclature
Correct Answer: C
6. Binomial nomenclature was given by
A. Aristotle
B. Whittaker
C. Darwin
D. Carolus Linnaeus
Correct Answer: D
7. Which of the following is the correct scientific name of mango?
A. mangifera Indica
B. Mangifera Indica
C. Mangifera indica
D. mangifera indica
Correct Answer: C
8. In a biological name, the first word represents
A. Species
B. Family
C. Genus
D. Order
Correct Answer: C
9. The second component of a scientific name is called
A. Genus
B. Family
C. Order
D. Specific epithet
Correct Answer: D
10. Scientific names are usually written in
A. English
B. Greek
C. Latin or Latinised form
D. French
Correct Answer: C
11. While writing a scientific name by hand, it should be
A. Written in bold
B. Written normally
C. Underlined separately
D. Written in capital letters
Correct Answer: C
12. Which code deals with the scientific naming of animals?
A. ICBN
B. ICZN
C. ICN
D. ICZN
Correct Answer: D
13. International Code for Botanical Nomenclature (ICBN) is used for
A. Animals
B. Fungi
C. Plants
D. Microorganisms
Correct Answer: C
14. The author’s name written after a scientific name indicates
A. Habitat of organism
B. Year of discovery
C. Who first described the species
D. Place of origin
Correct Answer: C
15. A group or category of organisms at any level of classification is called
A. Species
B. Population
C. Community
D. Taxon
Correct Answer: D
16. The process of grouping organisms into categories based on similarities is called
A. Nomenclature
B. Systematics
C. Classification
D. Identification
Correct Answer: C
17. The science that deals with identification, nomenclature and classification is
A. Ecology
B. Taxonomy
C. Genetics
D. Evolution
Correct Answer: B
18. Systematics differs from taxonomy because it also includes
A. Cell structure
B. Morphology
C. Habitat
D. Evolutionary relationships
Correct Answer: D
19. The word ‘systematics’ is derived from the Latin word
A. Species
B. Taxa
C. Systema
D. Natura
Correct Answer: C
20. Which of the following is NOT a basis of modern taxonomy?
A. External structure
B. Internal structure
C. Ecological information
D. Economic usefulness only
Correct Answer: D
Exam Tip
MCQs from binomial nomenclature rules, definitions, and examples are very high-frequency in CBSE exams.