Classification of Living Organisms Quiz

Test your knowledge on taxonomy with questions about kingdoms, criteria for classification, scientific terms, and more!

#1

Which kingdom do humans belong to?

Animalia
Plantae
Fungi
Protista
#2

Which of the following domains includes organisms with a distinct nucleus in their cells?

Archaea
Bacteria
Eukarya
Prokarya
#3

In the scientific name Homo sapiens, what does 'Homo' represent?

Genus
Species
Family
Order
#4

Which of the following is an example of a eukaryotic organism?

Escherichia coli (E. coli)
Archaea
Amoeba
Mycobacterium tuberculosis
#5

Which domain includes organisms that are often found in extreme environments such as hot springs and deep-sea vents?

Archaea
Bacteria
Eukarya
Viruses
#6

What is the main criterion for classifying organisms into different kingdoms?

Cell type
Mode of nutrition
Habitat
Reproduction
#7

Which scientist is often referred to as the 'Father of Taxonomy'?

Charles Darwin
Gregor Mendel
Aristotle
Carl Linnaeus
#8

Which taxonomic rank is immediately below family and above genus?

Order
Species
Class
Phylum
#9

What is the term for a group of organisms capable of interbreeding and producing fertile offspring?

Genus
Species
Family
Order
#10

Which of the following is a characteristic of the domain Archaea?

Presence of peptidoglycan in the cell wall
Unicellular organisms only
Extremophiles
Photosynthetic capability
#11

In biological classification, what does the term 'binomial nomenclature' refer to?

A two-part scientific name for species
Naming two organisms simultaneously
Classification of organisms into two domains
A method for breeding plants
#12

In the classification system, which of the following is more inclusive than a class?

Order
Phylum
Genus
Family
#13

What is the primary basis for the modern classification of organisms?

Morphology
Genetic information
Habitat
Geographical location
#14

Which of the following is an example of a prokaryotic organism?

Amoeba
Escherichia coli (E. coli)
Mushroom
Rose plant
#15

What is the primary function of the International Code of Nomenclature for algae, fungi, and plants (ICN)?

Classify animals
Regulate naming of plants
Define genetic codes
Establish ecological guidelines
#16

What is the correct order of hierarchical classification from broadest to most specific?

Kingdom, Phylum, Class, Order, Family, Genus, Species
Species, Genus, Family, Order, Class, Phylum, Kingdom
Class, Phylum, Kingdom, Species, Family, Genus, Order
Kingdom, Class, Order, Phylum, Genus, Family, Species
#17

Which scientist proposed the three-domain system of classification?

Carl Linnaeus
Robert H. Whittaker
Carolus Clusius
Carl Woese

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