CBSE Class 11 Biology The Living World MCQs Set A

Question: Arrange the following taxonomic categories in increasing number of common characteristics w.r.t. plant mango A. Dicotyledonae B. Polymoniales C. Mangifera D. Angiospermae E. Anacardiaceae
a) D→A→B→E→C
b) D→A→C→E→B
c) A→D→C→B→E
d) None of these
Answer: a

Question: The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for
a) reproduction
b) growth and movement
c) responsiveness to touch.
d) interaction with the environment and progressive evolution
Answer: a

Question: Which one of the following animals is correctly matched with its particular named taxonomic category ?
a) Tiger - tigris, the species
b) Cuttle fish - mollusca, a class
c) Humans - primata, the family
d) Housefly - musca, an order
Answer: a

Question: Choose correct scientific name of mango
a) Mangifera indica Linn
b) Mangifera indica Hook
c) Mangifera indica L
d) Mangifera Indica
Answer: a

Question: The common characteristics between brinjal and wheat can be observed maximum at the level of their.
a) Division
b) Kingdom
c) Phylum
d) None of these
Answer: a

Question: Study of number of chromosomes for resolving difficulties in classification is used in
a) Cytotaxonomy
b) Biochemical taxonomy
c) Morphotaxonomy
d) Chemotaxonomy
Answer: a

Question: Most names in biological nomenclature of living organisms are taken from which language?
a) Latin
b) French
c) Hindi
d) German
Answer: a

Question: Which of the following is against the rules of ICBN?
a) Hand written scientific names should be underlined.
b) Every species should have a generic name and a specific epithet.
c) Scientific names are in Latin and should be italicized.
d) Generic and specific names should be written starting with small letters.
Answer: d

Question: The basic unit of classification is:
a) genus
b) species
c) variety
d) subspecies
Answer: b

Question: Biological organisation starts with:
a) cellular level
b) organismic level
c) atomic level
d) submicroscopic molecular level.
Answer: d

Question: 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

Question: Which one of the following has least similar characters?
a) Class
b) Genus
c) Species
d) Family
Answer: a

Question: The ascending or descending arrangement of taxonomic categories is called as
a) hierarchy
b) classification
c) taxonomy
d) key
Answer: a

Question: Animal taxonomists have named the animals according to
a) International code for Zoological Nomenclature
b) International classification for Zoological Nomenclature
c) Indian code for Zoology Nomenclature
d) International class for Zoology Nomenclature
Answer: a

Question: More then 70% of world’s fresh water is contained in 
a) Antarctica
b) Greenland
c) Glaciers and Mountains
d) Polar ice
Answer: d

Question: Carbohydrates, the most abundant bio-molecules on earth, are produced by 
a) all bacteria, fungi and algae
b) fungi, algae and green plant cells
c) some bacteria, algae and green plant cells
d) viruses, fungi and bacteria
Answer: c

Question: Which one of the following is not a living fossil? 
a) King crab
b) Sphenodon
c) Archaeopteryx 
d) Peripatus
Answer: c

Question: Which one of the following is an example of negative feedback loop in humans?
a) Constriction of skin blood vessels and contraction of skeletal muscles when it is too cold
b) Secretion of tears after falling of sand particles into the eye
c) Salivation of mouth at the sight of delicious food
d) Secretion of sweat glands and constriction of skin blood vessels when it is too hot
Answer : A

Question: Biological organization starts with 
a) submicroscopic molecular level
b) cellular level
c) organismic level
d) atomic level
Answer: d

Question: Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature?
a) The names are written in Latin and are italicised.
b) When written by hand the names are to be underlined.
c) Biological names can be written in any language.
d) The first word in a biological name represents the genus name and the second is a specific epithet.
Answer: c

Question: The living organisms can be exceptionally 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: d

Question: Which one of the following aspects is an exclusive characteristic of living things?
a) Isolated metabolic reactions occur in vitro
b) Increase in mass from inside only
c) Perception of events happening in the environment and their memory.
d) Increase in mass by accumulation of material both on surface as well as internally.
Answer: c

Question: The book Genera Plantarum was written by:
a) Engler and Prantl
b) Bentham and Hooker
c) Bessey
d) Hutchinson
Answer: b

Question: The usage of binomial names for plant species was accepted by all after the publication of the work by:
a) Hooker
b) Linnaeus
c) Bentham
d) Darwin
Answer: b

Question: In a taxonomic hierarchy, family is interpolated between:
a) Kingdom and class
b) Class and order
c) Order and genus
d) Class and genus
Answer: c

Question: Employment of hereditary principles in the improvement of human race is:
a) Ethnology
b) Euphenics
c) Eugenics
d) Euthenics
Answer: c

Question: Insects are preserved in insect boxes after:
a) Collecting – Killing – Pinning
b) Killing – Collecting – Pinning
c) Killing – Pinning – Collecting
d) None of the options
Answer: a

Question: The term “New Systematics” was introduced by:
a) Bentham and Hooker
b) Linnaeus
c) Julian Huxley
d) A.P. de Candolle
Answer: c

Question: Linnaeus is credited with:
a) Binomial nomenclature
b) Theory of biogenesis
c) Discovery of microscope
d) Discovery of blood circulation
Answer: a

Question: The main objective of plant taxonomy is
a) all of these
b) to provide Latin 'scientific' names for every group of plants in the world
c) to provide a method for identification and nomenclature
d) to study the world's flora
Answer: a

Question: Which of the following statement is not true?
a) When the external temperature is warm, the superficial blood vessels constrict to prevent loss of body heat
b) Homeostasis is a fundamental property of life
c) Human beings are endothermic
d) None of these
Answer: a

Question: The usage of binomial names, for plant species was accepted by all after the publication of the work by
a) Linnaeus
b) Darwin
c) Hooker
d) None of these
Answer: a

Question: A taxon with reference to classification of living organisms can be defined as
a) a group of any one rank of organisms
b) a group of organisms based on chromosome numbers
c) a group of similar species
d) a group of similar genera
Answer: a

Question: Species are considered as
a) The lowest units of classification
b) Artificial concept of human mind which cannot be defined in absolute terms
c) Real basic units of classification
d) Real units of classification devised by taxonomists
Answer: a

Question: Linneaus system of classification is
a) Artificial
b) Progressive
c) Natural
d) Phylogenetic
Answer: a

Question: The book systema naturae was written by
a) Carolus Von Linnaeus
b) Hutchinson
c) Engler and Prantl
d) Bentham & Hooker
Answer: a

Question: The common characteristics between tomato and potato will be maximum at the level of their:
a) Family
b) Order
c) Division
d) Genus
Answer: a

Question: Which one of the following has least similar characters?
a) Class
b) Genus
c) Species
d) Family
Answer: a

Question:0: Herbarium sheet size is:
a) 29 × 41.5 cm
b) 29 × 40 cm
c) 30 × 20 cm
d) 20 × 20 cm
Answer: a

Question: “Ordines Anomali” of Bentham and Hooker includes:
a) Seed plants showing abnormal forms of growth and development
b) Plants represented only in fossil state
c) Plants described in the literature but not seen by Bentham and Hooker
d) A few orders which could not be placed satisfactorily in the classification
Answer: d

Question: Linnaeus evolved a system of nomenclature called:
a) Mononomial
b) Vernacular
c) Binomial
d) Polynomial
Answer: c

Question: What is true for individuals of same species?
a) Interbreeding
b) Live in same habitat
c) Live in same niche
d) None of the options
Answer: a

Question: Which one of the following is correctly matched regarding an institute and its location?
a) National Institute of Virology – Pune
b) National Institute of Communicable disease – Lucknow
c) Central Drug Research Institute – Kasauli Institute
d) National Institute of Nutrition – Mumbai
Answer: a

Question: Biosystematics aims at:
a) The classification of organisms based on broad morphological characters
b) Delimiting various taxa of organisms and establishing their relationships
c) The classification of organisms based on their evolutionary history and establishing their phylogeny using parameters from all fields of study
d) Identification and arrangement of organisms on the basis of their cytological characteristics
Answer: c

Question: “Ordines Anomali” of Bentham and Hooker includes :
a) A few orders which could not be placed satisfactory in the classification
b) Plants described in the literature but which Bentham and Hooker did not see in original
c) Plants represented only in fossil state
d) Seed plants showing abnormal forms of growth and development
Answer: a

Question: What is true for individuals of same species?
a) Interbreeding
b) Live in same habitat
c) Live in same niche
d) None of these
Answer: a

Question: Two similar holotypes are called
a) Isotypes
b) Syntypes
c) Neotypes
d) Mesotypes
Answer: a

Question: Employment of hereditary principles in the improvement of human race is 
a) Euthenics
b) Eugenics
c) Euphenics
d) Ethnology
Answer: b

Question: Pedology is science of 
a) earth
b) soil
c) diseases
d) pollution
Answer: b

Question: Study of fossils is 
a) Palaeontology
b) Herpetology
c) Saurology
d) Organic evolution
Answer: a