The Living World Chapter-Wise Test 21

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which scientist first used the term ‘Systema Naturae’ for classification?

Aristotle
Carolus Linnaeus
Gregor Mendel
Ernst Mayr
2

Carolus Linnaeus first used the term ‘Systema Naturae’ for classification.

Which of the following is correct about numerical taxonomy?

It classifies organisms based only on evolutionary relationships.
It is based on a large number of observable characteristics using statistical methods.
It ignores genetic similarities among organisms.
It is not used in modern classification.
2

Numerical taxonomy classifies organisms based on a large number of observable characteristics using mathematical and statistical techniques.

Which of the following statements about taxonomic categories is incorrect?

Genus includes multiple species that share common characteristics.
Family is a broader category than Order.
Phylum consists of multiple Classes.
Species is the most specific taxonomic rank.
2

Family is ranked below Order, not above it. Order is a broader taxonomic category than Family.

Why is binomial nomenclature preferred over local names for species identification?

It is easier to remember
It avoids confusion caused by different local names
It allows species to be named in any language
It only applies to animals
2

Binomial nomenclature ensures that each species has a universally recognized name, avoiding confusion caused by different local names.

Which of the following is a correct statement about classification?

Classification helps in understanding evolutionary relationships
It is based only on external characteristics
It does not help in naming organisms
It ignores genetic similarities
1

Classification helps in understanding evolutionary relationships among organisms.

Why is taxonomy considered a dynamic field of study?

It remains unchanged over time
New species and genetic data continuously refine classification
Only morphological features are considered
Taxonomic categories are fixed and universal
2

Taxonomy evolves as new species are discovered and genetic data provide better insights into relationships among organisms.

Which of the following statements about binomial nomenclature is incorrect?

Each organism is given a two-part scientific name.
The genus name is always written in lowercase.
Scientific names are written in Latin.
The species name follows the genus name.
2

In binomial nomenclature, the Genus name starts with a capital letter, while the species name is in lowercase.

Which of the following statements about classification is incorrect?

Classification helps in understanding evolutionary relationships.
Classification groups organisms based on similarities and differences.
Classification is only based on external characteristics.
Classification aids in identifying new species.
3

Classification is based on both external and internal characteristics, including genetic and molecular similarities.

Who is known as the 'Darwin of the 20th century'?

Charles Darwin
Ernst Mayr
Carolus Linnaeus
Jean-Baptiste Lamarck
2

Ernst Mayr was a Harvard University evolutionary biologist known as the 'Darwin of the 20th century' for his contributions to evolutionary biology and species diversity.

Which taxonomic rank includes species that are more closely related: Family or Order?

Family
Order
Both are equally specific
Neither is relevant to classification
1

Family is a more specific taxonomic rank than Order and includes species that are more closely related.

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