CBSE Class 11 Biology The Living World MCQs Set 06

Question: Which of the following is the only taxonomic category that has a real existence?
a) Phylum
b) Species
c) Genus
d) Kingdom
Answer: b

Question: Family – order – class of Musca domestica (Housefly) are respectively:
a) Muscidae – Insecta – Hymenoptera
b) Muscidae – Diptera – Mandibulata
c) Hymenoptera – Insecta – Mandibuleta
d) Muscidae – Diptera – Insecta
Answer: d

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

Question: 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

Question: Defining feature of life forms?
a) Metabolism
b) Consciousness
c) Cellular organization
d) All of the above
Answer: d

Question: 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

Question: Which of the following is less general in characters as compared to genus?
a) Species
b) Division
c) Class
d) Family
Answer: a

Question: 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

Question: Scientific name of Mango plant is Mangifera indica (Linn.) Santapau. In the above name Santapau refers to
a) Variety of Mango
b) A taxonomist who proposed the present nomenclature in honour of Linnaeus
c) A scientist who for the first time described Mango plant
d) A scientist who changed the name proposed by Linnaeus and proposed present name
Answer: d

Question: 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

Question: The system of classification based on evolutionary and genetic relationships among organisms, ignoring the morphological similarities or differences, is called
a) Cladistics
b) Phenetics
c) Classical systematics
d) New systematics
Answer: a

Question: 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

Question: Determination of age by counting growth rings falls under:
a) Chorology
b) Chronology
c) Dendrology
d) Dendrochronology
Answer: d

Question: In angiosperms, characters of flowers are used in classification because
a) Flowers are attractive.
b) Flowers are large.
c) Characters of flowers are conserved.
d) None of the above.
Answer: c

Question: 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

Question: Which of the following shows the correct example of taxonomic category – Genus?
a) Potato, tomato and brinjal belong to Solanum.
b) Monkey, gorilla and gibbon are placed in Mammalia.
c) Solanum, Petunia, and Datura are placed in Solanaceae.
d) Mangifera indica, Solanum tuberosum, and Panthera leo.
Answer: a

Question: Which of the following characters given below displays the description of lowest taxonomic category of organisms in the 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 organisms that resemble one another.
d) It is a group of organisms that are closely related and share similar characteristics.
Answer: c

Question: 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

Question: In binomial nomenclature, the first and second components represent:
a) Genus and species
b) Genus and class
c) Species and genus
d) Kingdom and class
Answer: a

Question: A prediction made by a scientist based on his observation is known as:
a) Law
b) Principle
c) Theory
d) Hypothesis
Answer: d

Question: The twin characteristics of growth are:
a) Increase in number of individuals, increase in mass
b) Increase in height and increase in mass
c) Increase in molecular weight and increase in mass
d) Increase in size and decrease in mass
Answer: a

Question: Improvement of human race through improvement of human environment is:
a) Anthropology
b) Euthenics
c) Euphenics
d) Eugenics
Answer: b