CBSE Class 11 Biology The Living World Assignments

Question. As we go from species to kingdom in a taxonomic hierarchy, the number of common characteristics:
a. Will decrease
b. Will increase
c. Remain same
d. May increase or decrease
Answer. A

Question. Which of the following ‘suffixes’ used for units of classification in plants indicates a taxonomic category of ‘family’?
a. — Ales
b. — Onae
c. — Aceae
d. — Ae
Answer. C

Question. The term ‘systematics’ refers to:
a. Identification and study of organ systems
b. Identification and preservation of plants and animals
c. Diversity of kinds of organisms and their relationship
d. Study of habitats of organisms and, their classification
Answer. C

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. A group of plants in a given area.
Answer. C

Question. The taxonomic unit ‘Phylum’ in the classification of animals is equivalent to which hierarchical level in classification of plants:
a. Class
b. Order
c. Division
d. Family
Answer. C

Question. Botanical gardens and Zoological parks have:
a. Collection of endemic living species only
b. Collection of exotic living species only
c. Collection of endemic and exotic living species
d. Collection of only local plants and animals
Answer. C

Question. Taxonomic key is one of the taxonomic tools in the identification and classification of plants and animals. It is used in the preparation of:
a. Monographs
b. Flora
c. Both (a) and (b)
d. None of these
Answer. C

Question. All living organisms are linked to one another because:
a. They have common genetic material of the same type
b. They share common genetic material but to varying degrees
c. All have common cellular organization
d. All of the above
Answer. B

Question. Which of the following is a defining characteristic of living organisms?
a. Growth
b. Ability to make sound
c. Reproduction
d. Response to external stimuli
Answer. D

Question. Match the following and choose the correct option.
A. Family        1. Tuberosum
B. Kingdom    2. Polymoniales
C. Order         3. Solanum
D. Species      4. Plantae
E. Genus         5. Solanaceae
a. A-4 B-3 C-5 D-2 E-1
b. A-5 B-4 C-2 D-1 E-3
c. A-4 B-5 C-2 D-1 E-3
d. A-5 B-3 C-2 D-1 E-4
Answer. B

Question- Biological names, when hand written, should necessary be:
a. Underlined
b. Bold (antics)
c. In capital letter
d. Italics
Answer. a

Question- Which of the following do not reproduces?
a. Phytoplankton
b. Worker bee
c. Queen bee
d. Mycoplasma
Answer. b

Question- A living organism is unexceptionally differentiated from
a nonliving structure on the basis of
a. Reproduction
b. Growth and movement
c. Interaction with environment
d. Responsiveness
Answer. d

Question- Isolated metabolism reaction outside the body performed in test tube
a. Living
b. Non - living
c. Neither living nor Non-living
d. Both (a) and (b)
Answer. c

Question- Linnaeus used the title for his publication is?
a. Systema Naturae
b. Genera Naturae
c. Altis vortex
d. Die Nature lichen pflanzen
Answer. a

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-The statement ‘nothing lives forever, yet life continues’ illustrates the role of
a. Embryogenesis
b. Morphogenesis
c. Replication
d. Reproduction
Answer. d

Question- The science of giving names to living beings called
a. Nomenclature
b. Identification
c. Classification
d. Characterization
Answer. a

Question- Described biodiversity range?
a. 1.7 - 1.8 million
b. 1.1 - 1.8 trillion
c. 1.7 - 1.8 billion
d. 17 - 18 billion
Answer. a

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

Question- ICBN codes for?
a. International code for Botanical Nomenclature
b. International code for Binomial Nomenclature
c. International code for Botanimal Naming
d. International code for Binomial Naming
Answer. a

Question- In which organism reproduction can be considered as synonymous with growth?
a. Amoeba
b. Planaria
c. Star fish
d. More then one option are correct
Answer. a

Question- ICZN codes for:
a. International code of zoological Nomenclature
b. International code for zoological Naming
c. International coding for zoological Nomenclature
d. Inbreeding code for zoological Nomenclature
Answer. a

Question- Defining property of living organism?
a. Reproduction
b. Metabolism
c. Consciousness
d. Cell division
Answer. c

Question- Select the correctly written botanical/ zoological name
a. Panthera tigris
b. Mangifera indica
c. Sativum pisum
d. Homo sapiens
Answer. a

Question. As we go from species to kingdom in a taxonomic hierarchy, the number of common characteristics:
a. Will decrease
b. Will increase
c. Remain same
d. May increase or decrease
Answer. A

Question. Which of the following ‘suffixes’ used for units of classification in plants indicates a taxonomic category of ‘family’?
a. — Ales
b. — Onae
c. — Aceae
d. — Ae
Answer. C

Question. The term ‘systematics’ refers to:
a. Identification and study of organ systems
b. Identification and preservation of plants and animals
c. Diversity of kinds of organisms and their relationship
d. Study of habitats of organisms and, their classification
Answer. C

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. A group of plants in a given area.
Answer. C

Question. The taxonomic unit ‘Phylum’ in the classification of animals is equivalent to which hierarchical level in classification of plants:
a. Class
b. Order
c. Division
d. Family
Answer. C

Question. Botanical gardens and Zoological parks have:
a. Collection of endemic living species only
b. Collection of exotic living species only
c. Collection of endemic and exotic living species
d. Collection of only local plants and animals
Answer. C

Question. Taxonomic key is one of the taxonomic tools in the identification and classification of plants and animals. It is used in the preparation of:
a. Monographs
b. Flora
c. Both (a) and (b)
d. None of these
Answer. C

Question. All living organisms are linked to one another because:
a. They have common genetic material of the same type
b. They share common genetic material but to varying degrees
c. All have common cellular organization
d. All of the above
Answer. B

Question. Which of the following is a defining characteristic of living organisms?
a. Growth
b. Ability to make sound
c. Reproduction
d. Response to external stimuli
Answer. D

Question. Match the following and choose the correct option.
A. Family       1. Tuberosum
B. Kingdom    2. Polymoniales
C. Order        3. Solanum
D. Species     4. Plantae
E. Genus       5. Solanaceae
a. A-4 B-3 C-5 D-2 E-1
b. A-5 B-4 C-2 D-1 E-3
c. A-4 B-5 C-2 D-1 E-3
d. A-5 B-3 C-2 D-1 E-4
Answer. B

Question. The label of a herbarium sheet does not carry information on:
a. Local names
b. Height of the plant
c. Date of collection
d. Name of collector
Answer. B

Question. Biodiversity of a geographical region represents:
a. Genetic diversity present in the dominant species of the region
b. Species endemic to the region
c. Endangered species found in the region
d. The diversity in the organisms living in the region
Answer. D

Question. A living organism can be unexceptionally differentiated from a non-living thing on the basis of its ability for:
a. Reproduction
b. Growth and movement
c. Responsiveness to touch
d. Interaction with environment and progressive evolution
Answer. A

Question. Biosystamatics 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 on the totality of various parameters from all fields of studies.
d. Identification and arrangement of organisms on the basis of their cytological characteristics.
Answer. C

Question. First life on earth was:
a. Cyanobacteria
b. Chemohetrotrophs
c. Autotrophs
d. Photoautotrophs
Answer. B

Question. Viable material of endangered species can be preserved by:
a. Gene bank
b. Gene library
c. Herbarium
d. Gene pool
Answer. A

Question. Which arrangement is in correct ascending order?
a. Species < genus < order < family
b. Genus < species < family < order
c. Order < family < genus < species
d. Species < genus < family < order
Answer. D

Question. ‘Taxon’ is the unit of a group of:
a. Order
b. Taxonomy
c. Species
d. Genes
Answer. B

Question. Sequence of taxonomic categories is:
a. Class-phylum-tribe-order-family-genus-species
b. Division-class-family-tribe-order-genus-species
c. Division-class-order-family-tribe-genus-species
d. Phylum-order-class-tribe-family-genus-species
Answer. C

Question. The high boiling point of water is advantageous to living organisms because
a. The environment seldom reaches the boiling point of water.
b. Organisms can easily boil off enough water to keep themselves cool.
c. It allows organisms to spread heat evenly throughout their bodies.
d. Organisms can absorb a great deal of heat before they reach the boiling point from organisms and population.
Answer. B

Question. A group of plants or animals with similar traits of any rank is:
a. Species
b. Genus
c. Order
d. Taxon
Answer. D

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. Static concept of species was put forward by:
a. de Candolle
b. Linnaeus
c. Mayr
d. Darwin
Answer. B

Assertion & Reason

Directions: These questions consist of two statements each, printed as Assertion and Reason. While answering these
questions, you are required to choose any one of the following four responses.
A. If both Assertion and Reason are True and the Reason is a correct explanation of the Assertion.
B. If both Assertion and Reason are True but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion and Reason are False.

Question. Assertion: Both the words in a biological name when handwritten, are separately underlined or printed in italics.
Reason: This is done to indicate their latin origin.
Answer. A

Question. Assertion: Character of family is more general as compared to character of genus.
Reason: Genera aggregates closely related species.
Answer. B

Question. Assertion: Botanical garden are one of the important taxonomic aids used in taxonomic studies.
Reason: Botanical garden play significant role in identification of plants.
Answer. A

Question. Assertion: Chemotaxonomy is classifying organism at molecular level.
Reason: Cytotaxonomy is classifying organism at cellular level.
Answer. B

Question. Assertion: Natural system fails to give phylogenetic relationship.
Reason: Natural system may use habit or habitat for classifying organism.
Answer. D

Question. Assertion: Living organisms show internal as well as external growth.
Reason: Living organisms undergo the process known as accretion.
Answer. D

Question. Assertion: New names in binomial nomenclature are derived from Latin or are Latinized.
Reason: Latin is a technical language.
Answer. B

Question. Assertion: In binomial nomenclature, both words are separately underlined.
Reason: Underlining indicates their Latin origin.
Answer. C

Question. Assertion: Complexity of classification increases from kingdom to species.
Reason: Common characters increase from kingdom to species.
Answer. A

Question. Assertion: The biological species concept helps us to ask how species are formed.
Reason: The concept of biological species focuses our attention on the question of how reproductive isolation comes about.
Answer. B

Question. Assertion: A morphology based approach to taxonomy is called ‘alpha taxonomy’ and it is old fashioned.
Reason: A multi-disciplinary approach to taxonomy called ‘omega taxonomy’ is favored in recent years, as it excludes morphological features.
Answer. D

Question. Assertion: Hierarchical system of classification is useful to reduce the voluminous description in the catalogue of organisms.
Reason: Characters of a larger category (like division) are not repeated for smaller/lower categories (family and order).
Answer. A

Question. Assertion: Museums are places/institution where preserved plant, animal artistic and educational material are exhibited to public.
Reason: Museums are of different kinds, like art, history, science and general museum which exhibit their material to public awareness.
Answer. B