1000+ The Living World Multiple Choice Question Answer [Solved]

1. Which one of the taxonomic aids can give comprehensive account of complete compiled information of any one genus or family at a particular time?
A. Taxonomic key
B. Flora
C. Herbarium
D. Monograph
Answer : D

2. Which of the following statement(s) is/are correct ?
(i) All living organisms have ability to respond the environment stimuli which could be physical, chemical or biological.
(ii) Plants respond to external factors like light, water, temperature, other organisms, pollutants, etc.
(iii) Photoperiod affects the process of reproduction.
(iv) Human being is the only organism who has self consciousness.
A. Only (i)
B. Both (ii) and (iii)
C. Both (i) and (iv)
D. All of these
Answer : D

3. Systematics refers to the
A. identification and classification of plants and animals.
B. nomenclature and identification of plants and animals.
C. diversity of kinds of organisms and their relationship.
D. different kinds of organisms and their classification.
Answer : C

4. The common characteristics between tomato and potato will be maximum at the level of their__________.
A. genus
B. family
C. order
D. division
Answer : B

5. Match column-I (Biological name) with column-II (Class) and choose the correct option.

Column-I	Column-II
(Biological name)	(Class)
A. Homo sapiens	I. Dicotyledonae
B. Musca domestica	II. Mammalia
C. Mangifera indica	III. Monocotyledonae
D. Triticum aestivum	IV. Insects

A. A IV; B II; C I; D III
B. A II; B IV; C III; D I
C. A II; B IV; C I; D III
D. A II; B I; C IV; D III
Answer : C

6. X being a higher category is the assemblage of families which exhibit a few Y characters. The Z characters are less in a number as compared to different genera included in a family. Identify X, Y, and Z.
A. X - Order; Y - Similar; Z - Similar
B. X - Genus; Y - Similar; Z - Different
C. X - Species; Y - Different; Z - Similar
D. X - Class; Y - Different; Z - Different
Answer : A

7. The fungi, the filamentous algae, the protonema of mosses, all easily multiply by _____.
A. budding
B. fission
C. regeneration
D. fragmentation
Answer : D

8. Which of the following statements are not correct ?
(i) Lower the taxon, more are the characteristics that the members within the taxon share.
(ii) Order is the assemblage of genera which exhibit a few similar characters.
(iii) Cat and dog are included in the same family Felidae.
(iv) Binomial nomenclature was introduced by Carolus Linnaeus.
A. (i), (ii) and (iii)
B. (ii), (iii) and (iv)
C. (i) and (iv)
D. (ii) and (iii)
Answer : D

9. Genus represents
A. an individual plant or animal.
B. a collection of plants or animals.
C. group of closely related species of plants or animals.
D. none of the above.
Answer : C

10. Which of the following statements is incorrect?
A. The scientific name for humans is Homo sapiens.
B. Organisms placed in the same genus are least closely related.
C. Moving from species to kingdom, more different species are included in each higher category.
D. Species that are in the same genus share very specific characteristics.
Answer : B

11. Which of the following is not a characteristic of life?
A. Reproduction
B. Complex chemical organization
C. Adaptation to environmental changes
D. Differentiation from cells to tissues
Answer : D

12. If an organism is in the same class but not in the same family then it may belong to same
A. genus
B. species
C. variety
D. order
Answer : D

13. Which of the following are unique features of living organisms?
A. Growth and reproduction
B. Reproduction and ability to sense environment
C. Metabolism and interaction
D. All of the above
Answer : D

14. Taxonomic hierarchy refers to
A. step-wise arrangement of all categories for classification of plants and animals.
B. a group of senior taxonomists who decide the nomenclature of plants and animals.
C. a list of botanists or zoologists who have worked on taxonomy of a species or group.
D. classification of a species based on fossil record.
Answer : A

15. Two animals which are the members of the same order must also be the members of the same __________.
A. class
B. family
C. genus
D. species
Answer : A

16. Which of the following taxonomic categories is being described by the given statements (i-iii) ?
(i) It is the basic unit of classification.
(ii) It is defined as the group of individuals which resemble in their morphological and reproductive characters and interbreed among themselves and produce fertile offsprings.
(iii) Human beings belong to the species sapiens which is grouped in the genus Homo.
A. Species
B. Genus
C. Order
D. Family
Answer : A

17. Herbarium is a
A. garden where medicinal plants are grown.
B. garden where herbaceous plants are grown.
C. dry garden.
D. chemical to kill plants.
Answer : C

18. Which of the following taxonomic aid provides information for the identification of names of species found in an area?
A. Monograph
B. Manual
C. Flora
D. Periodical
Answer : B

19. Identify the correct sequence of taxonomic categories.
A. Species ? Genus ? Order ? Class ? Family ? Phylum/Division ? Kingdom
B. Species ? Genus ? Family ? Class ? Phylum/Division ? Order ? Kingdom
C. Species ? Genus ? Family ? Order ? Class ? Phylum/Division ? Kingdom
D. Species ? Genus ? Family ? Order ? Class ? Phylum/Division ? Kingdom
Answer : D

20. Which of the following statements are correct about herbarium?
A. It is a store house of collected plant specimens that are dried and preserved on sheets.
B. Herbarium sheets contain information about date and place of collection, names, family, collectors name, etc.
C. It serves as quick referral systems in taxonomical studies.
D. All of the above
Answer : D

21. Select the correct statements (i-v) regarding taxonomic categories.
(i) Each step or rank in hierarchy is called taxonomic category.
(ii) Species is a group of individual organisms with fundamental similarities capable of breeding among themselves.
(iii) Taxonomic studies of all unknown organisms have led to the development of common categories like kingdom, phylum or division, class, order, family, genus and species.
(iv) Lower the category, greater is the difficulty of determining the relationship to other taxa at the same level.
A. (i) & (ii) only
B. (ii) & (iv) only
C. (i), (ii) & (iii) only
D. All of the above
Answer : A

22. Two plants can be conclusively said to belong to the same species if they
A. have same number of chromosomes.
B. can reproduce freely with each other and form seeds.
C. have more than 90 per cent similar genes.
D. look similar and possess identical secondary metabolites.
Answer : B

23. The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for
A. interaction with the environment and progressive evolution.
B. reproduction.
C. growth and movement.
D. responsiveness to touch.
Answer : B

24. Statement 1: Information given on the label of herbarium sheets does not include family.
Statement 2: Families are characterized on the basis of reproductive features of plant species only.
A. Statement 1 and 2 are true and statement 2 is the correct explanation for statement 1.
B. Statement 1 and 2 are true but statement 2 is not a correct explanation for statement 1.
C. Statement 1 is true and statement 2is false.
D. Both the statements are false.
Answer : D

25. The most important feature of all living systems is to
A. utilize oxygen to generate energy.
B. replicate the genetic information.
C. produce gametes.
D. utilize solar energy for metabolic activities.
Answer : B

26. Which one of the following is the first step in taxonomy ?
A. Naming
B. Description
C. Identification
D. Classification
Answer : C

27. In multicellular organisms, _____ refers to the production of progeny possessing features more or less similar to those of parents.
A. growth
B. reproduction
C. metabolism
D. consciousness
Answer : B

28. Families are characterized on which of the following features of plant species?
A. External morphology
B. Anatomy of parts
C. Vegetative and reproductive parts
D. Seasonal similarities and variations
Answer : C

29. Statement 1 : Taxon and category are different things.
Statement 2 : Category shows hierarchical classification.
A. Statement- 1 and statement-2 are true and statement-2 is a correct explanation for statement -1
B. Statement -1 and Statement -2 are true; statement-2 is not a correct explanation for statement - 1
C. Statement - 1 is true and statement- 2 is false
D. Both the statements are false.
Answer : A

30. In printed scientific names, only the ______ is capitalized.
A. class
B. species
C. genus
D. family
Answer : C

31. Which of the following statements regarding growth is incorrect?
A. In animals growth is seen up to a certain age.
B. Increase in body mass is considered as growth.
C. Growth by cell division occurs continuously throughout their life span in animals.
D. Increase in mass and number of individuals is the characteristics feature of animal growth.
Answer : C

32. Which one of the following taxonomical aid is used for identification of plants and animals based on similarities and dissimilarities?
A. Flora
B. Keys
C. Monographs
D. Catalogues
Answer : B

33. Refer the botanical name of wheat Triticum aestivum and identify the statement which correctly describes it.
A. The second word belongs to genus and starts with a small letter.
B. Both the words Triticum aestivum denote the specific epithet.
C. The first word Triticum denotes the genus which starts with a capital letter.
D. The first word Triticum denotes the specific epithet while the second word denotes the genus.
Answer : C

34. Each category of taxonomic hierarchy refers to as a unit of ______.
A. systematic
B. identification
C. nomenclature
D. classification
Answer : D

35. The famous botanical gaden Kew is located in
A. England
B. Lucknow
C. Berlin
D. Australia
Answer : A

36. Which of the following characters given below displays the description of lowest taxonomic category of the organisms of plant and animal kingdom?
A. It includes one or more than one order.
B. It is a group containing one or more families.
C. It is a group of related individuals that resemble one another.
D. It is a group of organisms that are closely related and share similar characteristics.
Answer : C

37. The order generally ends with
A. ales
B. aceae
C. eae
D. none of these
Answer : A

38. One of the most important functions of botanical gardens is that
A. they provide a beautiful area for recreation.
B. one can observe tropical plants there.
C. they allow ex-situ conservation of germ plasm.
D. they provide the natural habitat for wildlife.
Answer : C

39. In angiosperm, characters of flowers are used in classification because
A. flowers are attractive.
B. flowers are large.
C. character of flowers are conserved.
D. none of the above.
Answer : C

40. Which of the following taxonomic category of housefly is incorrectly matched?
A. Genus Musca
B. Family Muscidae
C. Order Primata
D. Class Insecta
Answer : C

41. Which of the following term is used to refer the number of varieties of plants and animals on earth ?
A. Taxonomy
B. Identification
C. Biodiversity
D. Classification
Answer : C

42. Which of the following factors exclusively affects reproduction in seasonal breeders, both plants and animals?
A. Water
B. Temperature
C. Photoperiod
D. All of these
Answer : C

43. ICBN stands for
A. International Code of Botanical Nomenclature
B. International Congress of Biological Names
C. Indian Code of Botanical Nomenclature
D. Indian Congress of Biological Names
Answer : A

44. Which of the following statement(s) is/are not correct ?
(i) Genus comprises a group of related species which has more characters in common in comparison to species of other genera.
(ii) Three different genera such as Solanum, Datura and Petunia are placed in the family malvaceae.
(iii) In case of plants, classes with a few similar characters are assigned to a higher category called phylum.
A. Both (i) and (ii)
B. Only (iii)
C. Both (ii) and (iii)
D. All of these
Answer : C

45. Which of the following statements regarding nomenclature is correct?
A. Generic name always begins with capital letter whereas specific name with small letter.
B. Scientific name should be printed in italics.
C. Scientific name when typed or handwritten should be underlined.
D. All of the above
Answer : D

46. Which of the following statement(s) is/are correct for Metabolsim ?
A. It is the sum total of all physical reactions taking place inside a living system.
B. All plants, animals, fungi and microbes exhibit metabolism.
C. Isolated metabolic reactions in-vitro are not living but are living reactions.
D. All of the above
Answer : B

47. Which of the following is the only taxonomic categories that has a real existence?
A. Phylum
B. Species
C. Genus
D. Kingdom
Answer : B

48. Match the common name given in column I with their taxonomic category order given in column II and choose the correct combination from the options given below.

Column-I	Column-II
(Taxonomic categoryOrder)	(Common name)
A. Wheat	I. Primata
B. Mango	II. Diptera
C. Housefly	III. Sapindales
D. Man	IV. Poales

A. A I, B II, C IV, D III
B. A IV, B III, C II, D I
C. A II, B IV, C I, D III
D. A III, B IV, C II, D I
Answer : B

49. The disadvantage of using common names for species is that
A. the names may change.
B. one name does not apply universally.
C. one species may have several common names and one common name may be applied to two species.
D. all of the above
Answer : D

50. The taxonomic unit phylum in the classification of animals is equivalent to which hierarchial level in classification of plants ?
A. Class
B. Order
C. Division
D. Family
Answer : C