Biological Classification

Biological Classification MCQ Test

1. Who proposed the five kingdom system of classification?

A. Carl Linnaeus
B. Robert Hooke
C. Whittaker
D. Lamarck

2. Which kingdom contains multicellular, eukaryotic organisms that are autotrophic?

A. Plantae
B. Fungi
C. Protista
D. Animalia

3. Which of the following is true about the kingdom Monera?

A. They are multicellular
B. They are eukaryotic
C. They are unicellular
D. They do not have cell walls

4. The kingdom Fungi includes organisms that are:

A. Unicellular and autotrophic
B. Multicellular and heterotrophic
C. Unicellular and heterotrophic
D. None of the above

5. Viruses are placed in a separate group because:

A. They are prokaryotic
B. They are unicellular
C. They cannot reproduce on their own
D. They are multicellular

6. What is the study of classification called?

A. Taxonomy
B. Anatomy
C. Morphology
D. Ecology

7. The smallest taxonomic unit is:

A. Kingdom
B. Phylum
C. Species
D. Family

8. Which of the following is a characteristic of the kingdom Protista?

A. Unicellular
B. Autotrophic
C. Eukaryotic
D. All of the above

9. The second smallest taxonomic category is:

A. Family
B. Genus
C. Species
D. Order

10. Which kingdom includes organisms that are mostly multicellular and heterotrophic?

A. Plantae
B. Animalia
C. Protista
D. Fungi

11. The classification system used by Linnaeus is called:

A. Binomial nomenclature
B. Trinomial nomenclature
C. Phylogeny
D. Taxonomy

12. In Whittaker's classification system, which kingdom includes multicellular eukaryotic heterotrophs?

A. Plantae
B. Fungi
C. Animalia
D. Protista

13. Which kingdom contains organisms that lack a true nucleus?

A. Plantae
B. Monera
C. Protista
D. Fungi

14. Who is credited with the classification of organisms into two groups, plants and animals?

A. Linnaeus
B. Lamarck
C. Aristotle
D. Darwin

15. What is the main difference between prokaryotes and eukaryotes?

A. Presence of a nucleus
B. Presence of cell membrane
C. Presence of mitochondria
D. Presence of ribosomes

16. Which of the following is characteristic of the kingdom Animalia?

A. Eukaryotic
B. Heterotrophic
C. Multicellular
D. All of the above

17. Which kingdom includes organisms that can photosynthesize?

A. Fungi
B. Plantae
C. Animalia
D. Protista

18. Which of the following kingdoms includes yeast?

A. Plantae
B. Fungi
C. Protista
D. Animalia

19. What is the smallest unit of classification?

A. Species
B. Genus
C. Family
D. Order

20. Which of the following organisms belong to the kingdom Plantae?

A. Mosses
B. Algae
C. Ferns
D. All of the above