The Living World Chapter-Wise Test 21

Correct answer Carries: 4.

Wrong Answer Carries: -1.

A student notices that Linnaeus titled one of his publications Systema Naturae. Which inference about the term “systematics” is supported by the chapter?

It is derived from the Greek word meaning species.
It is derived from the Latin word systema.
It refers only to the naming of plants.
It was introduced to replace classification.
2

The word systematics is derived from the Latin word systema. Carolus Linnaeus used Systema Naturae as the title of his publication.

A specimen is identified as Musca domestica. Which additional classification should be entered in its taxonomic record?

Family Felidae and order Carnivora
Family Hominidae and order Primata
Family Poaceae and order Poales
Family Muscidae and order Diptera
4

Musca domestica is the housefly. It belongs to the genus Musca, family Muscidae and order Diptera.

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

Class Mammalia
Genus Panthera
Order Carnivora
Phylum Chordata
3

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

A researcher assigns a scientific name to a specimen without first determining exactly which organism the name represents. Which essential process has been omitted?

Identification through correct description of the organism
Grouping according to economic use
Placement directly into a kingdom
Study of geographical distribution alone
1

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

A community groups organisms according to whether they provide food, clothing or shelter. Which type of classification does this most closely resemble?

Classification based on evolutionary relationships
Classification based on taxonomic rank alone
Classification based on scientific names
The earliest classification based on the uses of organisms
4

The earliest classifications were based on the usefulness of organisms to humans, particularly as sources of food, clothing and shelter.

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

Nomenclature alone
Systematics
Identification alone
Classification based only on use
2

Systematics includes identification, nomenclature and classification and also considers evolutionary relationships among organisms.

A student writes Mangifera indica by hand and draws one continuous underline beneath both words. Which correction is required?

Both words should begin with capital letters.
The specific epithet should be written first.
The generic name and specific epithet should be underlined separately.
Only the generic name should be underlined.
3

When a biological name is handwritten, the generic name and specific epithet are underlined separately. In printed form, both words are italicised.

A taxonomist is studying several newly discovered organisms. Which evidence set is appropriate for a modern taxonomic investigation?

External and internal structure, cell structure, development and ecological information
Only colour, size and local names
Only economic value and usefulness to humans
Only habitat and geographical location
1

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

A zoologist has correctly identified a new animal and now needs internationally accepted principles for assigning its scientific name. Which code should be consulted?

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

The International Code of Zoological Nomenclature provides internationally accepted principles for assigning scientific names to animals.

A tiger and lion belong to the genus Panthera, while a domestic cat belongs to the genus Felis. All three belong to Felidae. Which conclusion is most appropriate?

All three must belong to the same species.
The domestic cat is more closely related to the tiger than the lion is.
The tiger and lion belong to different families.
The tiger and lion share more characteristics with each other than either shares with the cat.
4

The tiger and lion share the same genus, whereas the domestic cat shares only their family. Members of a lower taxonomic category share more characteristics than organisms grouped only at a higher category.

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