The Living World Chapter-Wise Test 17

Correct answer Carries: 4.

Wrong Answer Carries: -1.

A student writes the biological name of mango by hand as Mangifera indica, underlining both words together with a single line. Which correction is required?

Both words should begin with capital letters.
The generic name and specific epithet should be underlined separately.
The specific epithet should be written before the generic name.
Only the specific epithet should be underlined.
2

When a biological name is handwritten, the generic name and specific epithet are underlined separately. The generic name begins with a capital letter, while the specific epithet begins with a small letter.

A taxonomist is comparing four newly identified organisms. Which set of information should be used for a modern taxonomic study?

Only their external colour and size
Only their habitats and local names
Only their economic uses and geographical locations
External and internal structure, cell structure, development and ecological information
4

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

A human is placed in the genus Homo and the class Mammalia. Which pair of categories occurs between these two ranks?

Primata and Chordata
sapiens and Hominidae
Hominidae and Primata
Chordata and Animalia
3

Humans belong to the genus Homo, family Hominidae, order Primata and class Mammalia. Therefore, Hominidae and Primata occur between genus and class.

Two organisms are placed in the same species, while another pair is placed only in the same genus. Which pair is expected to share more characteristics?

The pair placed in the same species
The pair placed only in the same genus
Both pairs must share exactly the same number of characteristics
The relationship cannot be inferred from taxonomic rank
1

Species is a lower and more specific category than genus. Members of lower taxa share more characteristics than members grouped at higher taxonomic levels.

A label reads Mangifera indica Linn. What can be concluded from “Linn.”?

The plant belongs to the family Linnaceae.
The plant was first collected in India.
The generic name has been abbreviated.
The species was first described by Linnaeus.
4

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

A taxonomist groups the families Felidae and Canidae together because they share a few similar characters. Which taxonomic category has been formed?

Class Mammalia
Order Carnivora
Genus Panthera
Phylum Chordata
2

Felidae and Canidae are related families included in the order Carnivora. An order is an assemblage of families sharing a few similar characters.

A scientist assigns a scientific name to an organism without first determining exactly which organism the name represents. Which taxonomic process has been omitted?

Classification
Systematics
Identification
Taxonomic hierarchy
3

Nomenclature is possible only after the organism has been correctly described and the organism to which the name is attached is known. This process is identification.

Solanum tuberosum, Solanum melongena and Solanum nigrum are compared. Which conclusion is supported by their names?

They are different species belonging to the same genus.
They belong to three different genera.
They are three names for the same species.
Their specific epithets represent a common family.
1

All three biological names begin with the generic name Solanum but have different specific epithets. They therefore represent different species of the same genus.

A botanist needs the agreed principles and criteria for assigning a scientific name to a plant. Which code should be consulted?

International Code of Zoological Nomenclature
International Code for Botanical Nomenclature
International Union for Conservation of Nature
World Health Organization
2

The International Code for Botanical Nomenclature provides agreed principles and criteria for assigning scientific names to plants.

A researcher identifies organisms, assigns scientific names, classifies them and analyses their evolutionary relationships. Which field best describes the complete study?

Identification alone
Nomenclature alone
Classification based on economic uses
Systematics
4

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

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