Diversity in the living world MCQs with Answers

Question-1. A taxon with reference to classification of living organisms can be defined as

1. a group of similar genera
2. a group of any one rank of organisms
3. a group of organisms based on chromosome numbers
4. a group of similar species

Question-2. According to Oparin, which one of the following was not present in the primitive atmosphere of the earth?

1. Water vapour
2. Methane
3. Oxygen
4. Hydrogen

Question-3. Adenine is

1. nucleotide
2. purine
3. pyrimidine
4. nucleoside

Question-4. Animal taxonomists have named the animals according to

1. International class for Zoology Nomenclature
2. International code for Zoological Nomenclature
3. International classification for Zoological Nomenclature
4. Indian code for Zoology Nomenclature

Question-5. Biological organization starts with

1. atomic level
2. submicroscopic molecular level
3. cellular level
4. organismic level

Question-6. Carbohydrates, the most abundant bio-molecules on earth, are produced by

1. viruses, fungi and bacteria
2. all bacteria, fungi and algae
3. fungi, algae and green plant cells
4. some bacteria, algae and green plant cells

Question-7. Choose correct scientific name of mango

1. Mangifera Indica
2. Mangifera indica Linn
3. Mangifera indica Hook
4. Mangifera indica L

Question-8. Employment of hereditary principles in the improvement of human race is

1. Ethnology
2. Euthenics
3. Eugenics
4. Euphenics

Question-9. First life on earth was

1. photoautotrophs
2. cyanobacteria
3. chemoheterotrophs
4. autotrophs

Question-10. Glycogen is a polymer of

1. sucrose
2. galactose
3. glucose
4. fructose

Question-11. If there was no CO2 in the earths atmosphere the temperature of earths surface would be

1. dependent on the amount of oxygen in the atmosphere
2. higher than the present
3. less than the present
4. the same

Question-12. Linneaus system of classification is

1. Phylogenetic
2. Artificial
3. Progressive
4. Natural

Question-13. More then 70% of worlds fresh water is contained in

1. Polar ice
2. Antarctica
3. Greenland
4. Glaciers and Mountains

Question-14. Most abundant organic compound on earth is

1. steroids
2. protein
3. cellulose
4. lipids

Question-15. Most names in biological nomenclature of living organisms are taken from which language?

1. German
2. Latin
3. French
4. Hindi

Question-16. Pedology is science of

1. pollution
2. earth
3. soil
4. diseases

Question-17. Reason of diversity in living being is

1. short term evolutionary change
2. mutation
3. gradual change
4. long term evolutionary change

Question-18. Species are considered as

1. Real units of classification devised by taxonomists
2. The lowest units of classification
3. Artificial concept of human mind which cannot be defined in absolute terms
4. Real basic units of classification

Question-19. Study of fossils is

1. Organic evolution
2. Palaeontology
3. Herpetology
4. Saurology

Question-20. Study of number of chromosomes for resolving difficulties in classification is used in

1. Chemotaxonomy
2. Cytotaxonomy
3. Biochemical taxonomy
4. Morphotaxonomy

Question-21. The ascending or descending arrangement of taxonomic categories is called as

1. key
2. hierarchy
3. classification
4. taxonomy

Question-22. The book systema naturae was written by

1. Bentham & Hooker
2. Carolus Von Linnaeus
3. Hutchinson
4. Engler and Prantl

Question-23. The CO2 content by volume, in the atmospheric air is about

1. 4%
2. 0.03%
3. 0.34%
4. 3.34%

Question-24. The common characteristics between brinjal and wheat can be observed maximum at the level of their.

1. None of these
2. Division
3. Kingdom
4. Phylum

Question-25. The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for

1. interaction with the environment and progressive evolution
2. reproduction
3. growth and movement
4. responsiveness to touch.

Question-26. The most important feature of all living systems is to

1. utilize solar energy for metabolic activities
2. utilize oxygen to generate energy
3. replicate the genetic information
4. produce gametes

Question-27. The usage of binomial names, for plant species was accepted by all after the publication of the work by

1. None of these
2. Linnaeus
3. Darwin
4. Hooker

Question-28. There is no life on moon due to the absence of

1. temperature
2. O2
3. water
4. light

Question-29. Two similar holotypes are called

1. Mesotypes
2. Isotypes
3. Syntypes
4. Neotypes

Question-30. What is true for individuals of same species?

1. None of these
2. Interbreeding
3. Live in same habitat
4. Live in same niche

Question-31. What is true for photolithotrophs?

1. Obtain energy from inorganic compounds
2. Obtain energy from radiations and hydrogen from organic compounds
3. Obtain energy from radiations and hydrogen from inorganic compounds
4. Obtain energy from organic compounds

Question-32. Which of the following statement is not true?

1. None of these
2. When the external temperature is warm, the superficial blood vessels constrict to prevent loss of body heat
3. Homeostasis is a fundamental property of life
4. Human beings are endothermic

Question-33. Which one of the following animals is correctly matched with its particular named taxonomic category ?

1. Housefly - musca, an order
2. Tiger - tigris, the species
3. Cuttle fish - mollusca, a class
4. Humans - primata, the family

Question-34. Which one of the following aspects is an exclusive characteristic of living things ?

1. Perception of events happening in the environment and their memory.
2. Increase in mass by accumulation of material both on surface as well as internally.
3. Isolated metabolic reactions occur in vitro.
4. Increase in mass from inside only

Question-35. Which one of the following has least similar characters?

1. Family
2. Class
3. Genus
4. Species

Question-36. Which one of the following is an example of negative feedback loop in humans?

1. Secretion of sweat glands and constriction of skin blood vessels when it is too hot
2. Constriction of skin blood vessels and contraction of skeletal muscles when it is too cold
3. Secretion of tears after falling of sand particles into the eye
4. Salivation of mouth at the sight of delicious food

Question-37. Which one of the following is not a living fossil?

1. Peripatus
2. King crab
3. Sphenodon
4. Archaeopteryx

Question-38. A system which gets a continuous flow of energy is called

1. steady state
2. micropropagated system
3. closed system
4. open system

Question-39. Binomial Nomenclature was given by

1. Alexander Agassiz and Carlous Linnaeus
2. Ernst Mayr
3. Alexander Agassiz
4. Carolus Linnaeus

Question-40. Biosystematics aims at

1. The classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies
2. Identification and arrangement of organisms on the basis of cytological characteristics
3. The classification of organisms based on broad morphological characters
4. Delimiting various taxa of organism and establishing their relationships

Question-41. Identify the incorrect match.

1. Kinesiology – Fossil study
2. Physiology – Study of functions and processes of life
3. Pedology – Soil science
4. Limnology – Study of fresh water

Question-42. In angiosperm, characters of flowers are used in classification because

1. None of the above
2. Flowers are attractive
3. Flowers are large
4. Characters of flowers are conservative

Question-43. Keystone species are

1. extinct species
2. important for ecosystem
3. important for plants
4. endangered species

Question-44. Musca domestica is common name of

1. Ant
2. Housefly
3. Mosquito
4. Snail

Question-45. National Botanical Research Institute is located in

1. Lucknow
2. Shimla
3. Dehradun
4. Howrah

Question-46. Scientific name of plants are given by

1. International code for zoological nomenclature
2. International code for Botanical nomenclature
3. International code for biological plants
4. Indian code for Botanical nomenclature

Question-47. Solanum, Panthera, Homo are examples of

1. Species epithet
2. Family
3. Division
4. Genera

Question-48. Systematics deals with

1. All of these
2. Nomenclature of new organisms
3. Evolutionary relationship between organisms
4. Identification of newly discovered organisms

Question-49. Taxonomic studies depends on

1. All of the above.
2. Ecological information of organisms.
3. Structure of cell and development process of organisms.
4. External and internal structure of organisms.

Question-50. The ozone layer is found in the

1. troposphere
2. hydrosphere
3. stratosphere
4. lithosphere

Question-51. The Phylogenetic system of classification was put forth by

1. Adolf Engler and Karl Prantl
2. Theophrastus
3. George Bentham and Joseph Dalton Hooker
4. Carolus Linnaeus

Question-52. The study of fish culture is called

1. pisciculture
2. ophiology
3. herpetology
4. ichthyology

Question-53. Two taxonomic species are distinguished from each other by

1. discontinuity in a set of correlated characters
2. their failure to interbreed
3. their ability to exchange gene freely
4. their similarity in morphological characters

Question-54. Wheat belongs to division

1. None of the above
2. Angiospermae
3. Gymnospermae
4. Poacae

Question-55. Which of the following does not come under taxon?

1. Key
2. Species
3. Kingdom
4. Division

Question-56. Which of the following is correct?

1. Panthera leo Order – leo Family – Felidae Phylum – Mammalia
2. Musca domestica Order – Diptera Family – Muscidae Phylum – Arthropoda
3. Mangifera indica Order – Sapindales Family – Anacardiaceae Phylum – Gymnospermae
4. Triticum aestivum Order – Poles Family – Monocotyledons Phylum – Angiospermae

Question-57. Which of the following shows maximum diversity?

1. Protistans
2. Plantas
3. Animalia
4. Monerans