Living world

 ### *MCQs on "The Living World"*

1. *Which of the following is not a characteristic of living organisms?*  

   a) Growth  

   b) Reproduction  

   c) Metabolism  

   d) Isolated existence  

   *Answer:* d) Isolated existence  

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2. *Growth in living organisms occurs due to:*  

   a) Increase in cell size only  

   b) Increase in cell number only  

   c) Both increase in cell size and cell number  

   d) Accumulation of material by external agency  

   *Answer:* c) Both increase in cell size and cell number  

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3. *Which of the following is not a defining feature of living organisms?*  

   a) Consciousness  

   b) Cellular organization  

   c) Reproduction  

   d) Response to stimuli  

   *Answer:* c) Reproduction  

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4. *The process of classification of organisms into different taxa is called:*  

   a) Identification  

   b) Nomenclature  

   c) Taxonomy  

   d) Systematics  

   *Answer:* c) Taxonomy  

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5. *The scientific name of an organism consists of:*  

   a) Genus and species  

   b) Family and genus  

   c) Order and family  

   d) Class and order  

   *Answer:* a) Genus and species  

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6. *Which of the following is the correct sequence of taxonomic categories?*  

   a) Species → Genus → Family → Order → Class → Phylum → Kingdom  

   b) Species → Family → Genus → Order → Class → Phylum → Kingdom  

   c) Species → Genus → Order → Family → Class → Phylum → Kingdom  

   d) Species → Genus → Family → Class → Order → Phylum → Kingdom  

   *Answer:* a) Species → Genus → Family → Order → Class → Phylum → Kingdom  

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7. *The term "systematics" refers to:*  

   a) Naming of organisms  

   b) Identification of organisms  

   c) Classification and evolutionary relationships of organisms  

   d) Study of habitats of organisms  

   *Answer:* c) Classification and evolutionary relationships of organisms  

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8. *Which of the following is not a part of the taxonomic hierarchy?*  

   a) Genus  

   b) Species  

   c) Variety  

   d) Division  

   *Answer:* c) Variety  

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9. *Binomial nomenclature was introduced by:*  

   a) Charles Darwin  

   b) Carolus Linnaeus  

   c) Ernst Haeckel  

   d) Robert Whittaker  

   *Answer:* b) Carolus Linnaeus  

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10. *The term "species" refers to:*  

    a) A group of organisms that can interbreed  

    b) A group of organisms with similar morphological features  

    c) A group of organisms with similar genetic makeup  

    d) A group of organisms with similar ecological roles  

    *Answer:* a) A group of organisms that can interbreed  

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11. *Which of the following is an example of a taxon?*  

    a) Homo sapiens  

    b) Mammalia  

    c) Panthera leo  

    d) All of the above  

    *Answer:* b) Mammalia  

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12. *The study of diversity of organisms and their evolutionary relationships is called:*  

    a) Taxonomy  

    b) Systematics  

    c) Ecology  

    d) Genetics  

    *Answer:* b) Systematics  

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13. *Which of the following is not a part of the five-kingdom classification?*  

    a) Monera  

    b) Protista  

    c) Fungi  

    d) Algae  

    *Answer:* d) Algae  

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14. *The term "biodiversity" refers to:*  

    a) Variety of life forms on Earth  

    b) Variety of ecosystems on Earth  

    c) Variety of genes in a species  

    d) All of the above  

    *Answer:* d) All of the above  

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15. *Which of the following is not a characteristic of the five-kingdom classification?*  

    a) Prokaryotic and eukaryotic organisms are grouped separately  

    b) Unicellular and multicellular organisms are grouped separately  

    c) Autotrophic and heterotrophic organisms are grouped separately  

    d) All organisms are grouped based on their habitat  

    *Answer:* d) All organisms are grouped based on their habitat  

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16. *The term "taxon" refers to:*  

    a) A group of related species  

    b) A rank in the taxonomic hierarchy  

    c) A group of related genera  

    d) All of the above  

    *Answer:* d) All of the above  

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17. *Which of the following is not a part of the taxonomic aids?*  

    a) Herbarium  

    b) Botanical garden  

    c) Museum  

    d) Laboratory  

    *Answer:* d) Laboratory  

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18. *The term "herbarium" refers to:*  

    a) A collection of preserved plant specimens  

    b) A collection of preserved animal specimens  

    c) A collection of fossils  

    d) A collection of live plants  

    *Answer:* a) A collection of preserved plant specimens  

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19. *Which of the following is not a part of the taxonomic keys?*  

    a) Dichotomous key  

    b) Polyclave key  

    c) Indented key  

    d) Numerical key  

    *Answer:* d) Numerical key  

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20. *The term "nomenclature" refers to:*  

    a) The process of naming organisms  

    b) The process of classifying organisms  

    c) The process of identifying organisms  

    d) The process of studying organisms  

    *Answer:* a) The process of naming organisms