Test: The Living World- 1

20 Questions MCQ Test Biology Class 11 | Test: The Living World- 1

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Botanical gardens and zoological parks have:

  • Botanical gardens and zoological parks are specialized places where living plants are grown and living animals are kept (where they can reproduce too) respectively.
  • Both, endemic (local), as well as exotic (foreign to that place) species, are kept in these places. They can be used for scientific studies.
  • Example: Botanical garden at Kew, England, and National Zoological Park, Delhi.

Which of the following statements regarding universal rules of nomenclature is wrong?


The universal rules of nomenclature are as follows:

  • Biological names are in Latin and are written in italics.
  • The first word in the name indicates the genus, while the second word denotes its specific epithet.
  • When the name is handwritten, both the words are separately underlined. When printed, the name is in italics.
  • The first letter of the first word is always written in capital, while the first letter of the specific epithet, i.e. the second word, is a small letter.

Examples: Homo sapiens, Mangifera indica


A group of closely related classes is called:

  • Genus comprises a group of related species. 
  • Family has a group of related genus.
  • Order has a group of related family.

Hence, the correct option is Phylum.


Full form of ICBN is:


ICBN stands for International Code for Botanical Nomenclature that frames rules for the nomenclature of plants applicable all over the world.


Herbarium is _________.


The herbarium is a storehouse of collected plant specimens that are dried, pressed, and preserved on sheets. Hence, the correct option is the Collection of dried plant specimens.

Image of a Herbarium Sheet:


The expansion of ICZN is:


Animal taxonomists have evolved International Code of Zoological Nomenclature (ICZN).


In five-kingdom system, the main basis of classification is;


The five-kingdom classification is based on:

  • Cell structure
  • Mode of nutrition
  • Reproduction
  • Phylogenetic relationships

Since, Mode of nutrition is given in the options, therefore the correct answer is option (b)


The basic unit of classification is:


The basic unit of classification is species. Species are population of organisms that can inter breed among themselves to produce new organisms.


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


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 taxon with the least similar characters shared between its various members while species is the lowest level with almost similar morphological and behavioral similarities.

Species is followed by Genus with slightly fewer similarities among its members.
So, the correct answer is 'Species'


National Botanical Research Institute is situated at:

  • Originally conceptualized and set up as the National Botanic Gardens (NBG) by Professor Kailas Nath Kaul on behalf of the State Government of Uttar Pradesh, it was taken over by the CSIR in 1953. Dr. Triloki Nath Khoshoo joined in 1964 as the Assistant Director, shortly afterward becoming the Director.
  • Initially engaged in research work in the classical botanical disciplines, the NBG went on laying an increasing emphasis in keeping with the national needs and priorities in the field of plant sciences, on its applied and developmental research activities.
  • Due to the untiring efforts of Dr. Khoshoo, the institute rose to the stature of being the National Botanical Research Institute in 1978, reflecting the correct nature and extent of its aims and objectives, functions and R & D activities.
  • Sikandar Bagh is a famous and historic pleasure garden, located in the grounds of the Institute.
  • The National Botanical Research Institute (NBRI) is a research institute of CSIR in Lucknow. It is engaged in the field of taxonomy and modern biology.

So the correct option is 'Lucknow'.


A binomial nomenclature has _________ words.


The first word in a biological name represents the genus while the second component denotes the specific epithet. Hence, the correct option is Two.


The Darwin of 20th century is:


Born on 5 July 1904, in Kempten, Germany, ERNST MAYR, the Harvard University evolutionary biologist who has been called ‘The Darwin of the 20th century’, was one of the 100 greatest scientists of all time.

Ernst Mayr (1904 - 2005):
Ernst Mayr (1904–2005). Photograph reproduced with permission from the... |  Download Scientific Diagram


Related genera belong to the same:


Family is a group of genera having some common properties. So, related genera belongs to the same family.


Classification based on evolutionary and genetic relationship is called:

  • Cladistics is a method in which the organisms are classified using different criteria.
  • The organisms are compared on the basis of the evolution, history, and the relationship between them.
  • The genetic relation help in identifying the ancestors.
  • This method (Cladistics) helps in the classification of the organism on the basis of comparison with the other organisms.
  • The tree which shows the relationship between the organisms is known as the cladogram. 



It is a handy book containing instructions of occurrence, collection and identification of species found in a particular area.

  • Manual is handy book containing instructions as to occurrence, collection and identification of species found in a particular area.
  • The scientist has to study the morphological and anatomical characters of the plant parts, compare the characteristic features with the similar information available in the scientific literature and after that he can decide the exact systematic position of the plant, name it according to the rules of binomial nomenclature and fix it’s systemic position.

Select the correctly written scientific name of Mango which was first described by Carolus Linnaeus.

  • Mangifera indica Linn is the scientific name for mango.
  • The Linn is the abbreviation which is used for the scientist who named it, Carolus Linnaeus, whenever such abbreviation is used after the scientific name then it always shows the name of the scientist who named it.
  • Mangifera represents the genus and indicia represent the species.

The taxonomic unit ‘Phylum’ in the classification of animals is equivalent to which hierarchical level in classification of plants?

  • Classes comprising animals like fishes, amphibians, reptiles, birds along with mammals constitute the next higher category called Phylum. All these classes are included in the phylum chordata.
  • In case of plants, classes with a few similar characters are assigned to a higher category called Division.

In a hierarchical system of classification of plants, which of the following taxonomic rank ends in ‘aceae’?

  • There is no suffix for genus and species.
  • Family is a taxonomic category between the division and order.
  • It includes one or more genera. Its suffix is 'aceae'. For example, Solanaceae.
  • In case of vascular plants order ends with suffix 'ales' ​

Hence, the correct option is Family.


A branch of biology which deals with the identification, nomenclature and classification of organisms is called:

  • Taxonomy is a ‘branch of science’ that deals with arrangement of organisms into taxa based on their characteristics and behavioural changes.  
  • Each organism is given a separate taxonomic rank and is put under the categories such as ‘phylum’ (division is sometimes used in ‘botany in place of phylum’), kingdom, class, family, genus, order, and species.

The taxonomical aid used for identification of plants and animals based on the similarities and dissimilarities is:

  • The term 'key' refers to a set of alternate characters in such a manner that helps in the identification of plants and animals by selecting and eliminating the characters according to their presence or absence in the organism.
  • Different categories use different keys. Each statement in the key is called a lead.
  • Example:
    ► Ear wings and mammary glands are present – bat.
    Beak, feathers, wings are present – birds.
    Mammary glands, pinna, and scales are absent; Limbs and slimy skin is present – Frog.

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