The Living World Test

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The Living World Test - 56

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Weekly Quiz Competition

Question 1
1 / -0

Individuals of one population can interbreed with individuals of another population if they belong to same

A
Species

B
Genus

C
Family

D
Order
Solution
The biological species concept is the most widely accepted species concept. Ernst Mayr defined a species as 'species are groups of interbreeding natural populations that are reproductively isolated from other such groups'.
The biological species concept explains why the members of a species resemble one another, i.e. form phenetic clusters, and differ from other species.
So, the correct option is 'Species'.
Question 2
1 / -0

Taxon is

A
Species

B
Unit of classification

C
Highest rank in classification

D
All of the above

Solution

A. Correct option B
B. Explanation for the correct option.

1. Taxon is a unit of classification.
2. It is a group or rank in the biological classification system.
3. It is used to classify similar or related organisms on the basis of different parameters.
4. For example- kingdom, phylum, class order genus and species.
Question 3
1 / -0

If a botanist want to study nomenclature of a similar species, the scientist will study

A
Syntype

B
Isotype

C
Neotype

D
Mesotype

Solution

1. Syntype: It refers to two or more specimens collected by the author simultaneously of the same species.
2. Isotype: It is a duplicate of the holotype collected and can be used for studies when holotype is not accessible.
3. Neotype: It refers to the new specimen collected when the original material is missing.
So, the correct option is 'Isotype'.
Question 4
1 / -0

A binomial nomenclature has how many words/parts?

A
Five

B
Three

C
Two

D
One
Solution
- Carolus Linnaeus gave a scientific naming system in which an organism is given a universally accepted name consisting of 2 parts/words.
- The first part is the generic name and the second part is the (specific) species name.
So, the correct option is 'Two'.
Question 5
1 / -0

Which of the following is less general in characters as compared to genus?

A
Species

B
Family

C
Class

D
Division
Solution
Correct option: A

Explanation:
- 'Species' is less general in following to genus.
- Species are the smallest group among all the eight levels of taxonomy with almost similar characters.
- It is followed by Genus with slightly fewer similarities among its members.
- Examples: Armadillo – Dasypus novemcinctus, Cat – Felis catus, etc.
Hence, ‘species’ is the correct answer.
Question 6
1 / -0

A species was defined as a population of interbreeding individuals and reproductively isolated from other populations by

A
Charles Darwin

B
J. B. Lamarck

C
Carolus Linnaeus

D
Ernst Mayr

Solution

According to biological concept of species presented by Ernst Mayer in 1940, a species is a group of interbreeding natural population that is reproductively isolated from other such groups.
So, the correct option is 'Ernst Mayr'.
Question 7
1 / -0

Which one of the following has least similar characters?

A
Family

B
Class

C
Genus

D
Species
Solution
The correct hierarchy of classification of various taxons in descending order is given by :
Kingdom → Phylum → Class → Order → Family → Genus → Species
The kingdom is the highest level of classification while species being the most specific.
Since Class occupies the highest level amount all options, it has most generalized characters and organisms share least similar characters at this level.
So, the correct option is 'Class'.
Question 8
1 / -0

Which covers the largest number of organisms?

A
Genus

B
Family

C
Phylum

D
Class
Solution
The correct hierarchy of classification of various taxons in descending order is given by :
Kingdom → Phylum → Class → Order → Family → Genus → Species
The kingdom is the highest level of classification and contains the maximum number of species followed by Phylum while species being the most specific having minimum number of members.
So, the correct option is 'Phylum'.
Question 9
1 / -0

Binomial system of nomenclature for plants is effective from _________.

A
5/8/1771

B
1/5/1753

C
1/8/1758

D
6/7/1736
Solution
- Binomial nomenclature is given by Carl Linnaeus.
- Species Plantarum was published on 1st May 1753 by Carl Linnaeus, which lists every species of plant known at the time according to the binomial nomenclature.
- Thus, the Binomial system of nomenclature for plants is effective from 1/5/1753.
Question 10
1 / -0

Find out the correct sequence in ascending order of hierarchy.

A
Phylum, Class, Family, Species, Order

B
Species, Genus, Family, Order, Class

C
Species, Genus, Phylum, Family, Class

D
Class, Family, Species, Genus, Order

Solution

Species is the smallest unit of classification. The genus includes more than one species. The various genus comprises a family. Many families make an order. The class is on the higher taxonomic level than order and includes many orders.
So, the correct option is 'Species, Genus, Family, Order, Class'.

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The Living World Test - 56

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SHARING IS CARING

Question 1

Species

Genus

Family

Order

Solution

Question 2

Species

Unit of classification

Highest rank in classification

All of the above

Solution

Question 3

Syntype

Isotype

Neotype

Mesotype

Solution

Question 4

Five

Three

Two

One

Solution

Question 5

Species

Family

Class

Division

Solution

Question 6

Charles Darwin

J. B. Lamarck

Carolus Linnaeus

Ernst Mayr

Solution

Question 7

Family

Class

Genus

Species

Solution

Question 8

Genus

Family

Phylum

Class

Solution

Question 9

5/8/1771

1/5/1753

1/8/1758

6/7/1736

Solution

Question 10

Phylum, Class, Family, Species, Order

Species, Genus, Family, Order, Class

Species, Genus, Phylum, Family, Class

Class, Family, Species, Genus, Order

Solution

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