The Living World (PYQs)

Q1. Which one of the following animals is correctly matched with its particular named taxonomic category?
Correct Answer: (a)
Tigris is the species (specific epithet).
Q2. Basic unit or smallest taxon of taxonomy/ classification is
Correct Answer: (a)
Species is the basic unit.
Q3. ICBN stands for
Correct Answer: (a)
International Code of Botanical Nomenclature.
Q4. The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for
Correct Answer: (d)
Responsiveness/Consciousness is the only feature without exception in all living beings.
Q5. Angiosperms have dominated the land flora primarily because of their
Correct Answer: (a)
Angiosperms have adapted successfully to terrestrial, aquatic, tropical, deciduous, and alpine habitats.
Q6. Linnaeus is credited with
Correct Answer: (a)
Linnaeus gave Binomial Nomenclature.
Q7. Static concept of species was put forward by
Correct Answer: (b)
Linnaeus considered species as fixed and unchanging entities.
Q8. What is true for photolithotrophs?
Correct Answer: (b)
Photolithotrophs use light as energy and inorganic compounds as electron donors.
Q9. Binomial nomenclature was introduced by
Correct Answer: (b)
Linnaeus popularised binomial nomenclature.
Q10. Study of fossils is
Correct Answer: (a)
Palaeontology is the scientific study of fossils.
Q11. Which one of the following organisms is scientifically correctly named, correctly printed according to the International Rules of Nomenclature and correctly described?
Correct Answer: (b)
Plasmodium falciparum causes malignant malaria.
Q12. Binomial nomenclature means
Correct Answer: (b)
Scientific name with two components.
Q13. The term New Systematics was introduced by
Correct Answer: (c)
Julian Huxley (1940).
Q14. What is true for individuals of same species?
Correct Answer: (c)
Ability to interbreed defines a species.
Q15. Which of the following is against the rules of ICBN?
Correct Answer: (a)
Genus must start with Capital, Species with small letter.
Q16. The most important feature of all living systems is to
Correct Answer: (b)
Replication of genetic information ensures continuity of life.
Q17. Biological organisation starts with
Correct Answer: (d)
Biological organization starts at the molecular level where various molecules interact to form organelles.
Q18. Organisms which obtain energy by the oxidation of reduced inorganic compounds are called
Correct Answer: (b)
Chemoautotrophs use chemical energy from oxidation of inorganic substances.
Q19. Phenetic classification is based on
Correct Answer: (c)
Based on overall similarities of observable traits.
Q20. Which one of the following aspects is an exclusive characteristic of living things?
Correct Answer: (c)
Consciousness and the ability to sense and respond to stimuli is a defining property of living organisms.
Q21. Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature?
Correct Answer: (a)
Biological names must be in Latin.
Q22. The term phylum was given by
Correct Answer: (b)
Haeckel introduced Phylum.
Q23. An important criterion for modern day classification is
Correct Answer: (b)
Uses internal structure and physiology.
Q24. Taxonomy without phylogeny is similar to bones without flesh is the statement of
Correct Answer: (c)
Statement by Armen Takhtajan.
Q25. Species are considered as
Correct Answer: (c)
Species is the basic and lowest unit.
Q26. Biosystematics aims at
Correct Answer: (d)
Aims to establish phylogeny using all data.
Q27. Which one of the following is not a correct statement ?
Correct Answer: (b)
Museums have actual specimens, not just photos.
Q28. The book Genera Plantarum was written by
Correct Answer: (d)
George Bentham and Joseph Dalton Hooker wrote Genera Plantarum.
Q29. Select the correctly written scientific name of Mango which was first described by Carolus Linnaeus:
Correct Answer: (b)
Format is Genus species Author citation (Linn.).
Q30. Employment of hereditary principles in the improvement of human race is
Correct Answer: (b)
Eugenics is the study of improving human population through controlled breeding.
Q31. It is much easier for a small animal to run uphill than for a large animal, because
Correct Answer: (b)
Basal metabolic rate is inversely proportional to body size. Smaller animals have a higher metabolic rate.
Q32. Sequence of taxonomic categories is
Correct Answer: (c)
Phylum -> Class -> Order -> Family -> Tribe -> Genus -> Species.
Q33. Which of the following has proved helpful in preserving pollen as fossils?
Correct Answer: (c)
Sporopollenin is an extremely resistant organic material. It can withstand high temperatures and strong acids/alkali.
Q34. Species is a
Correct Answer: (a)
Species is the basic unit of classification.
Q35. Homeostasis is organism's
Correct Answer: (b)
Homeostasis is the maintenance of a stable internal environment.
Q36. A taxon is
Correct Answer: (d)
Taxon is any unit of classification.
Q37. The common characteristics between tomato and potato will be maximum at the level of their
Correct Answer: (b)
Both belong to Solanaceae. Shared characters decrease as we go up.
Q38. Binomial nomenclature consists of two words
Correct Answer: (a)
Genus and specific epithet.
Q39. The contrasting characteristics generally in a pair used for identification of animals in Taxonomic Key are referred to as :
Correct Answer: (c)
Pair of contrasting traits in a key is a couplet.
Q40. First life on earth was
Correct Answer: (b)
The first organisms were anaerobic chemoheterotrophs.
Q41. Linnaeus evolved a system of nomenclature called
Correct Answer: (c)
Binomial system.
Q42. The practical purpose of classification of living organisms is to
Correct Answer: (d)
Main goal is easy identification.

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