The Living World Test

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The Living World Test - 33

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Weekly Quiz Competition

Question 1
1 / -0

Which one of the following includes all the other lower taxa?

A
Class

B
Order

C
Genus

D
Species

Solution

The taxonomic ranks in descending order are domain, kingdom, phylum, class, order, family, genus and species. Higher taxon will comprise broader characteristic features and include features of its lower taxa. As a class would include order, family, genus and species.
So, the correct answer is option A.
Question 2
1 / -0

Fill in the blanks according to the correct hierarchy reaching the smallest in classification of an animal (refer figure).

A
A- Phylum, B- Kingdom, C- Subphylum, D- Family, E- Order, F- Subfamily, G- Genus, H- Species

B
A- Kingdom, B- Phylum, C- Subphylum, D- Class, E- Order, F- Family, G- Genus, H- Species,

C
A- Subphylum, B- Phylum, C- Kingdom, D- Class, E- Order, F- Family, G- Genus, H- Species

D
A- Genus, B- Kingdom, C- Subphylum, D- Order, E- Class, F- Subfamily, G- Species, H- Family
Solution
- Kingdom: The topmost taxonomic category. Example: All animals are included in Kingdom Animalia
- Phylum: It is a term used for animals while its synonym division is used for plants. It is a collection of similar classes. Phylum Chordata of animals has class Mammalia along with birds, reptiles, and amphibians.
- Subphylum: A taxonomic rank below the rank of the phylum.
- Class: One or more than one order makes a class. Class Mammalia includes all mammals which are bats, rodents, kangaroos, whales, great apes, and man.
- Order: One or more than one similar families constitute an order.
- Family: It is defined as a collection of similar genera. It can be separated from genera by reproductive and vegetative features. For example, cats and leopard are included in the same family.
- Genus: It is defined as a group of similar species.
- Species: Group of a population which is similar in form, shape and reproductive features so that fertile sibling can be produced.
- Thus, the correct answer is 'Kingdom, phylum, class, order, family, genus, species.'
Question 3
1 / -0

In kingdom animalia according to the traditional school of systematic, birds are assigned to a different group from reptiles because

A
They evolved from reptiles

B
They are quite different from reptiles

C
Feathers evolved from scales

D
All of the above

Solution

In the Linnaean system, organisms are grouped by characteristics regardless of their ancestry. So, a reptile is an animal that is ectothermic and has scales, and birds would not be reptiles. In the 1940's, a biologist named Willi Hennig came up with another classification system that he called as phylogenetics. In this system, organisms are grouped only by their ancestry and characteristics are only used to discover the ancestry. So, a bird is any animal descended from the original group called as reptiles and birds (as well as mammals) would be reptiles.
Thus, the correct answer is option D.
Question 4
1 / -0

The taxon 'family' ends with suffix?

A
'aler'

B
'ae'

C
'ceae'

D
'idae'

Solution

In fungal, algal, and botanical nomenclature, the family names of plants, fungi, and algae end with the suffix "-ceae".
So the correct answer is option C.

Question 5

1 / -0

Match the following.

1. John Ray	A. Gave the concept of Systematics
2. C. Linnaeus	B. First described species as a unit of classification
3. Augustin Pyrame de Candolle	C. Coined the term, taxonomy
4. Julian Huxley	D. Introduced binomial nomenclature

1 - B, 2 - C, 3 - D, 4 - A

1 - A, 2 - C, 3 - D, 4 - B

1 - C, 2 - B, 3 - D, 4 - A

1 - B, 2 - D, 3 - C, 4 - A

Solution

Carolus Linnaeus was a Swedish botanist, physician, and zoologist who created the binomial nomenclature. In this system, every kind of animal and plant is given a name consisting of two Latin words, for its genus and species.
Sir Julian Sorell Huxley was an English evolutionary biologist, eugenicist, and internationalist. He was a proponent of natural selection and a leading figure in the mid-twentieth century evolutionary synthesis. He gave the concept of systematics.
Augustin Pyramus de Candolle was a Swiss botanist who coined the term taxonomy.
John Ray was a highly influential English naturalist and botanist whose contributions to taxonomy are considered groundbreaking and historic. He is also well-known in the world of botany for the establishment of species as the ultimate unit of taxonomy. He first described species as a unit of classification.
So, the correct answer is '1 - B, 2 - D, 3 - C, 4 - A'

Question 6
1 / -0

New systematics and the concept of life was given by

A
Clementia

B
Elton

C
Odum

D
Huxley

Solution

Huxley discovered New systematics and the concept of life. The term New systematics was given by Julian Huxley in 1940. In this, the classification is based on cytological, morphological, genetical, anatomical and physiological characteristics.
Thus, the correct answer is 'Huxley'.
Question 7
1 / -0

Which of the following pairs are not related?

A
Mendel- Pisum sativum

B
Morgan- Drosophila

C
Bentham and Hooker- Binomial nomenclature

D
Hugo de Vries- Oenothera lamarckiana

Solution

Mendel used Pisum sativum or garden pea in his genetic experiments to explain the principles of genetics.
Thomas Hunt Morgan used Drosophila as a model organism in his genetic studies.
Hugo Marie de Vries was a Dutch botanist and one of the first geneticists. He is known chiefly for suggesting the concept of genes, rediscovering the laws of heredity in the 1890s while unaware of Gregor Mendel's work, for introducing the term "mutation", and for developing a mutation theory of evolution. He used Oenothera lamarckiana in his studies.
Binomial nomenclature was given by Linnaeus. George Bentham and Joseph Dalton Hooker is known for natural classification.
Thus, option C is correct.
Question 8
1 / -0

Which one of the following statements correctly defines the term 'Homonym'?

A
Identical name of two different taxon.

B
Two or more names belonging to the same taxon.

C
When species name repeats the generic name.

D
Other name of a taxon given in a language other than the language of zoological/botanical nomenclature.

Solution

In biology, a homonym is a name for a taxon that is identical in spelling to another such name, that belongs to a different taxon. The rule in the International Code of Zoological Nomenclature is that the first such name to be published is the senior homonym and is to be used; any others are junior homonyms and must be replaced with new names.
Thus, the correct answer is option A.
Question 9
1 / -0

The species name

A
Can be same as of genus

B
Cannot be used for another genus

C
Cannot be used for the same or another genus again

D
None of these

Solution

Binomial nomenclature is a system of nomenclature in which all living things are given specific scientific name. Scientific name consist of two parts, the first part is genus name and the second part is species name. Two different species can have the same name if they belong to different genera. For example, Pinus glabra (Cedar pine) and Ilex glabra (Inkberry). The species name can be same as of genus. This is called as tautonym. A tautonym is a scientific name of a species in which both parts of the name, that is genus and species, have the same spelling. For example Rattus rattus for black rat.
Thus, the correct answer is option A.
Question 10
1 / -0

Biosystematics aims at

A
The classification of organisms based on broad morphological characters.

B
Delimiting various taxa of organisms and establishing their relationships.

C
The classification of organisms based in their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies.

D
Identification and arrangement of organisms on the basis of their cytological characteristics.
Solution
answer:
Correct Answer: C
Explanation:
Biosystematics is a part of systematic which mainly look after variations and evolutions that occur at different level of taxa.
These list out the variations based on their evolutionary relationships between species, organisms, taxa and many other level.
The characteristic used for this systematic evolutionary relationships are the phylogenetic character.
Hence, biosystematics aims at classification of organisms based in their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies.

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The Living World Test - 33

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The Living World Test - 33

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Question 1

Class

Order

Genus

Species

Solution

Question 2

A- Phylum, B- Kingdom, C- Subphylum, D- Family, E- Order, F- Subfamily, G- Genus, H- Species

A- Kingdom, B- Phylum, C- Subphylum, D- Class, E- Order, F- Family, G- Genus, H- Species,

A- Subphylum, B- Phylum, C- Kingdom, D- Class, E- Order, F- Family, G- Genus, H- Species

A- Genus, B- Kingdom, C- Subphylum, D- Order, E- Class, F- Subfamily, G- Species, H- Family

Solution

Question 3

They evolved from reptiles

They are quite different from reptiles

Feathers evolved from scales

All of the above

Solution

Question 4

'aler'

'ae'

'ceae'

'idae'

Solution

Question 5

1 - B, 2 - C, 3 - D, 4 - A

1 - A, 2 - C, 3 - D, 4 - B

1 - C, 2 - B, 3 - D, 4 - A

1 - B, 2 - D, 3 - C, 4 - A

Solution

Question 6

Clementia

Elton

Odum

Huxley

Solution

Question 7

Mendel- Pisum sativum

Morgan- Drosophila

Bentham and Hooker- Binomial nomenclature

Hugo de Vries- Oenothera lamarckiana

Solution

Question 8

Identical name of two different taxon.

Two or more names belonging to the same taxon.

When species name repeats the generic name.

Other name of a taxon given in a language other than the language of zoological/botanical nomenclature.

Solution

Question 9

Can be same as of genus

Cannot be used for another genus

Cannot be used for the same or another genus again

None of these

Solution

Question 10

The classification of organisms based on broad morphological characters.

Delimiting various taxa of organisms and establishing their relationships.

The classification of organisms based in their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies.

Identification and arrangement of organisms on the basis of their cytological characteristics.

Solution

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