The Living World Test

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The Living World Test - 30

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Weekly Quiz Competition

Question 1
1 / -0

.......... has smallest number of organisms with maximum number of similar characters.

A
Species

B
Class

C
Order

D
Family

Solution

While following the hierarchy of classification, it is the species which is the group with the smallest number of organisms having maximum characteristics in common or similar.
In biology, the hierarchy of classification has 8 major ranks. The taxonomic ranks start with species followed by genus, family, order, class, phylum, kingdom, domain leading to life. Here, the class is defined as that taxonomic order where organisms are classified with their common general traits or characters that all of them possess in common like having a backbone called as vertebrates or not having the backbone are called as invertebrates. An order is a taxonomic rank which is used in the classification of organisms. The family is that taxonomic group where organisms of same genera are put together like tigers and cat belong to the same family Felidae.
Question 2
1 / -0

Carl von Linne was involved with which of the following branches of science?

A
Morphology

B
Taxonomy

C
Physiology

D
Medicine

Solution

Carl von Linne, better known as Carl Linnaeus made pioneering contributions to the naming and classification of living organisms as early as in 1753 and had proposed the binomial nomenclature.
Question 3
1 / -0

Which of the following statements is true regarding individuals of same species

A
They are interbreeding

B
They live in same niche

C
They live in different niche

D
They live in different habitat

Solution

Uniform interbreeding population or group of individuals which freely interbreed among themselves, constitute a species.
So the correct answer is 'They are interbreeding'.
Question 4
1 / -0

The book 'Systema Naturae' was written by__________

A
Linnaeus

B
Haeckel

C
Whittaker

D
Brown

Solution

The book 'Systema Naturae' was one of the major works of the Swedish botanist, zoologist and physician Carolus Linnaeus (1707-1778) who introduced the Linnaean taxonomy, that later came to be known as the binomial nomenclature. The first edition was published in 1735.
Haeckel coined the term "ecology".
Whittaker proposed the five-kingdom classification.
Robert Brown discovered the nucleus.
Question 5
1 / -0

Assertion : "The Biological Species" concept helps us to ask how species are formed.

Reason : The concept of biological species focuses our attention on the question of how reproductive isolation comes about.

A
If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B
If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C
If the assertion is true but the reason is false

D
If both the assertion and reason are false

E
If the assertion is false but reason is true

Solution

Ernst Mayr proposed the biological species concept, which defines species as groups of actually or potentially inter-breeding natural populations which are reproductively isolated from other such groups.
Question 6
1 / -0

Select the group which shares maximum number of common characters.

A
Two individuals of a species

B
Two species of a genus

C
Two genera of a family

D
Two genera of two families

Solution

Species is a difficult word to define and different workers in the field of taxonomy and systematics have provided different definitions at different times. The most widely accepted concept of species is the biological species concept. According to this concept, members of a species can freely interbreed and produce fertile offsprings while members of different species are reproductively isolated and cannot produce fertile offsprings. This concept does not apply to organisms that predominantly reproduce asexually. According to the morphological criteria, a member of same species show similar body plan architecture and have a number of similar characters which are not expected in members of other species. The morphological character of species is the most simple and easy to understand. Species is the smallest unit in the taxonomical hierarchy and denotes a group of organisms with a maximum number of common characters.
Therefore, the correct answer is option A.
Question 7
1 / -0

Which of the following sequences of taxa in the animal kingdom is correct?

A
$$Kingdom\rightarrow Phylum\rightarrow Class \rightarrow Order\rightarrow Family \rightarrow Species \rightarrow Genus$$

B
$$Kingdom \rightarrow Phylum \rightarrow Class\rightarrow Order\rightarrow Family \rightarrow Genus\rightarrow Species$$

C
$$Kingdom \rightarrow Phylum\rightarrow Class\rightarrow Family \rightarrow Order \rightarrow Genus \rightarrow Species$$

D
$$Phylum \rightarrow Kingdom\rightarrow Class \rightarrow family \rightarrow Order \rightarrow Genus \rightarrow Species$$

Solution

In biological classification, the rank is the level of organisms (a taxon) that have similar characters are placed in a taxonomic hierarchy. The correct sequence of groups from most to least inclusive is Kingdom- Phylum- Class-Order- Family- Genus- Species. For example, human beings belong to Kingdom- Animalia, Phylum- Chordata, Class- Mammalia, Order- Primates, Family- Hominidae, Genus-Homo, Species-sapiens.
Thus, the correct answer is option B.
Question 8
1 / -0

Which of the following sequences is the correct order of naming the sub groups at various levels in the classification of animal kingdom?

A
Kingdom, Phylum, Order, Family, Class

B
Kingdom, Phylum, Class, Family, Order, Genus

C
Kingdom, Phylum, Class, Order, Genus, Family, Species

D
Kingdom, Phylum, Class, Order, Family, Genus, Species

Solution

In biological classification, the rank is the level of organisms (a taxon) which have similar characters are placed in a taxonomic hierarchy. The correct sequence of groups from most to least inclusive is Kingdom- Phylum- Class-Order- Family- Genus- Species. For example, human beings belong to Kingdom- Animalia, Phylum- Chordata, Class- Mammalia, Order- Primates, Family- Hominidae, Genus- Homo, Species- Sapiens.
Thus, the correct answer is option D.
Question 9
1 / -0

What does Paris code and Vienna code refer to?

A
Nomenclature of plants

B
Nomenclature of animals

C
Both of the above

D
Anticode

Solution

The binomial system of nomenclature has been an important factor in the development of taxonomy. Before the middle of 18th century the names of plants were polynomials consisting of several words. The confusion arising due to this emphasised the need of a code of nomenclature by which the naming of plants might be regulated. Many codes have been proposed, buy only two have received the support of international conferences, the Paris Code of 1867 and the Vienna Code of 1905. These two codes have been a great help in stabilising nomenclature.
Question 10
1 / -0

The scientific name of mango is written as Mangifera indica L. Pickup the correct statement about the significance of letter 'L'.

A
Letter 'L' singnifies Latin language.

B
The name is reverse with indica preceding Mangifera.

C
Letter 'L' signifies the taxonomist, Linnaeus.

D
Letter 'L' is superfluous.

Solution

Carl Linnaeus was a Swedish botanist, physician and zoologist, who laid the foundations for the mordern biological naming scheme of biological nomenclature. He is known as the father of taxonomy and is also considered one of the fathers of modern ecology. In botany, the author abbreviation used to indicate Linnaeus as the authority for species name. In older publications, sometimes the abbreviation "Linn" is found.

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The Living World Test - 30

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The Living World Test - 30

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Question 1

Species

Class

Order

Family

Solution

Question 2

Morphology

Taxonomy

Physiology

Medicine

Solution

Question 3

They are interbreeding

They live in same niche

They live in different niche

They live in different habitat

Solution

Question 4

Linnaeus

Haeckel

Whittaker

Brown

Solution

Question 5

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

If the assertion is true but the reason is false

If both the assertion and reason are false

If the assertion is false but reason is true

Solution

Question 6

Two individuals of a species

Two species of a genus

Two genera of a family

Two genera of two families

Solution

Question 7

$$Kingdom\rightarrow Phylum\rightarrow Class \rightarrow Order\rightarrow Family \rightarrow Species \rightarrow Genus$$

$$Kingdom \rightarrow Phylum \rightarrow Class\rightarrow Order\rightarrow Family \rightarrow Genus\rightarrow Species$$

$$Kingdom \rightarrow Phylum\rightarrow Class\rightarrow Family \rightarrow Order \rightarrow Genus \rightarrow Species$$

$$Phylum \rightarrow Kingdom\rightarrow Class \rightarrow family \rightarrow Order \rightarrow Genus \rightarrow Species$$

Solution

Question 8

Kingdom, Phylum, Order, Family, Class

Kingdom, Phylum, Class, Family, Order, Genus

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

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

Solution

Question 9

Nomenclature of plants

Nomenclature of animals

Both of the above

Anticode

Solution

Question 10

Letter 'L' singnifies Latin language.

The name is reverse with indica preceding Mangifera.

Letter 'L' signifies the taxonomist, Linnaeus.

Letter 'L' is superfluous.

Solution

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