Questions on Classification of Living Beings
Classification of Living Beings – Multiple Choice Questions
1. Who is known as the "Father of Taxonomy"?
A) Aristotle
B) Charles Darwin
C) Carl Linnaeus
D) Gregor Mendel
E) Ernst Haeckel
2. The system of naming organisms using two names is called:
A) Trinomial nomenclature
B) Polynomial system
C) Binomial nomenclature
D) Taxonomic key
E) Morphological classification
3. In binomial nomenclature, the first word refers to the:
A) Species
B) Order
C) Class
D) Genus
E) Phylum
4. The second word in binomial nomenclature indicates the:
A) Kingdom
B) Family
C) Genus
D) Species
E) Domain
5. Which of the following taxonomic ranks is the most specific?
A) Class
B) Order
C) Family
D) Genus
E) Species
6. Which of these ranks is broader than phylum?
A) Class
B) Order
C) Kingdom
D) Genus
E) Family
7. What is the correct order of taxonomic hierarchy from broad to specific?
A) Kingdom, Phylum, Class, Order, Family, Genus, Species
B) Species, Genus, Family, Order, Class, Phylum, Kingdom
C) Kingdom, Class, Phylum, Order, Family, Genus, Species
D) Phylum, Kingdom, Class, Order, Genus, Species
E) Class, Kingdom, Species, Order, Genus, Family
8. Which kingdom contains unicellular prokaryotes?
A) Protista
B) Plantae
C) Animalia
D) Monera
E) Fungi
9. Which of the following kingdoms includes organisms that are eukaryotic and autotrophic?
A) Monera
B) Fungi
C) Animalia
D) Plantae
E) Protista
10. Fungi obtain their food by:
A) Photosynthesis
B) Chemosynthesis
C) Absorbing nutrients
D) Ingesting other organisms
E) Diffusion of gases
11. Which of the following is not a characteristic of the Animalia kingdom?
A) Multicellularity
B) Eukaryotic cells
C) Cell walls
D) Heterotrophy
E) Movement
12. Protists are generally classified as:
A) Multicellular eukaryotes
B) Unicellular prokaryotes
C) Eukaryotes, mostly unicellular
D) Non-living particles
E) Autotrophic prokaryotes
13. What do all living things in the domain Eukarya have in common?
A) They are multicellular
B) They are autotrophic
C) They have membrane-bound organelles
D) They reproduce asexually
E) They lack nuclei
14. Archaea differ from Bacteria in that:
A) Archaea are eukaryotic
B) Archaea are multicellular
C) Archaea have no cell wall
D) Archaea have unique biochemical characteristics
E) Archaea cannot survive extreme environments
15. Which taxonomic group includes the most organisms?
A) Species
B) Genus
C) Family
D) Class
E) Kingdom
16. The scientific name of an organism is usually written in:
A) Latin
B) Greek
C) English
D) French
E) German
17. Which of the following is a correctly written scientific name?
A) homo sapiens
B) Homo Sapiens
C) Homo sapiens
D) Homo Sapiens L.
E) HOMO SAPIENS
18. Which classification system recognizes three domains of life?
A) Linnaean
B) Modern molecular taxonomy
C) Two-kingdom system
D) Three-kingdom system
E) Classical Greek system
19. Viruses are not placed in any kingdom because:
A) They are too small
B) They are non-living outside host cells
C) They are prokaryotic
D) They contain no genetic material
E) They reproduce by mitosis
20. The five-kingdom classification was proposed by:
A) Carl Linnaeus
B) Charles Darwin
C) Robert Whittaker
D) Louis Pasteur
E) Alfred Wallace
Answer Key
1. C) Carl Linnaeus
2. C) Binomial nomenclature
3. D) Genus
4. D) Species
5. E) Species
6. C) Kingdom
7. A) Kingdom, Phylum, Class, Order, Family, Genus, Species
8. D) Monera
9. D) Plantae
10. C) Absorbing nutrients
11. C) Cell walls
12. C) Eukaryotes, mostly unicellular
13. C) They have membrane-bound organelles
14. D) Archaea have unique biochemical characteristics
15. E) Kingdom
16. A) Latin
17. C) Homo sapiens
18. B) Modern molecular taxonomy
19. B) They are non-living outside host cells
20. C) Robert Whittaker
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