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

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

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

Question-3. Adenine is

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

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

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

Question-5. Biological organization starts with

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

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

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

Question-7. Choose correct scientific name of mango

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

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

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

Question-9. First life on earth was

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

Question-10. Glycogen is a polymer of

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

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

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

Question-12. Linneaus system of classification is

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

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

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

Question-14. Most abundant organic compound on earth is

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

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

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

Question-16. Pedology is science of

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

Question-17. Reason of diversity in living being is

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

Question-18. Species are considered as

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

Question-19. Study of fossils is

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

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

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

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

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

Question-22. The book systema naturae was written by

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

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

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

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

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

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

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

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

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

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

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

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

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

Question-29. Two similar holotypes are called

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

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

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

Question-31. What is true for photolithotrophs?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Question-39. Binomial Nomenclature was given by

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

Question-40. Biosystematics aims at

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

Question-41. Identify the incorrect match.

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

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

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

Question-43. Keystone species are

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

Question-44. Musca domestica is common name of

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

Question-45. National Botanical Research Institute is located in

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

Question-46. Scientific name of plants are given by

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

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

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

Question-48. Systematics deals with

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

Question-49. Taxonomic studies depends on

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

Question-50. The ozone layer is found in the

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

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

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

Question-52. The study of fish culture is called

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

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

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

Question-54. Wheat belongs to division

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

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

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

Question-56. Which of the following is correct?

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

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

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