The Living World
Test-3

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which statement correctly describes classification?

It assigns only local names to organisms.
It deals exclusively with evolutionary relationships.
It prevents organisms from being placed in taxonomic categories.
It groups organisms into convenient categories based on observable characters.
4

Classification is the process of grouping organisms into convenient categories based on easily observable characters.

Which statement about Systema Naturae is correct?

It was a publication by Charles Darwin.
It was the title used by Linnaeus for his publication.
It was the international code for naming animals.
It was the earliest system based on the uses of organisms.
2

Linnaeus used Systema Naturae as the title of his publication. The word systematics is derived from the Latin word systema, meaning the systematic arrangement of organisms.

Which taxonomic category is directly below kingdom in animal classification?

Class
Order
Phylum
Genus
3

In animal classification, phylum is placed directly below kingdom. In plants, the corresponding category is called division.

On what basis were the earliest classifications of organisms made?

Their usefulness to human beings
Their evolutionary relationships
Their taxonomic hierarchy
Their scientific names
1

The earliest classifications were based on the uses of organisms because human beings needed sources of food, clothing and shelter.

Which statement about the International Code of Zoological Nomenclature (ICZN) is correct?

It provides principles only for naming plants.
It assigns local names to animal species.
It replaces binomial nomenclature in animals.
It provides principles for the scientific naming of animals.
4

The ICZN provides internationally accepted principles for the scientific naming of animals. These principles help ensure that each organism has a single valid scientific name.

Which of the following forms the basis of modern taxonomic studies?

Only external morphology
Only ecological information
External and internal structure, cell structure, development and ecological information
Only the economic uses of organisms
3

Modern taxonomic studies use external and internal structure, cell structure, developmental processes and ecological information.

What distinguishes systematics from a study limited to naming and classification?

Systematics excludes identification.
Systematics also considers evolutionary relationships among organisms.
Systematics uses only local names.
Systematics does not include nomenclature.
2

Systematics includes identification, nomenclature and classification and also takes evolutionary relationships among organisms into account.

What does “Linn.” indicate in Mangifera indica Linn.?

The plant belongs to the genus Linn.
The species was first described by Linnaeus.
The plant was first identified in India.
The specific epithet is abbreviated.
2

The abbreviated author name placed after the specific epithet indicates the scientist who first described the species. “Linn.” indicates Linnaeus.

What is the correct way to write the scientific name of mango?

Mangifera Indica
mangifera indica
Mangifera indica
mangifera Indica
3

In a printed biological name, the generic name begins with a capital letter, the specific epithet begins with a small letter, and both words are italicised: Mangifera indica.

What happens to the number of common characteristics as one moves from species towards kingdom?

It increases continuously.
It remains unchanged.
It decreases.
It first increases and then decreases.
3

As one moves from species towards kingdom, the number of common characteristics decreases. Members of lower taxa share more characteristics than members of higher taxa.

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