CBSE Class 11 Biology The Living World Worksheet Set 02

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

Question: Which one of the following branch is applicable to both plants and animals?
a) Herpetology
b) Saurology
c) Taxonomy
d) Ichthyology
Answer: c

Question: Linnaeus put similar species into a larger group called the
a) Species
b) Family
c) Kingdom
d) Genus
Answer: d

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

Question: Species is considered:
a) As basic unit of classification
b) The largest unit of classification
c) Artificial concept of human mind which cannot be defined in absolute terms
d) Real unit of classification devised by taxonomists
Answer: a

Question: The taxonomic category below the level of family is
a) Class
b) Species
c) Phylum
d) Genus
Answer: d

Question: Few rules are written following regarding binomial nomenclature. Identify the wrong one:
a) Biological names are latinized and written in italics
b) Generic and specific name starts with capital letter
c) Generic and specific name when handwritten are underlined
d) All are correct
Answer: b

Question: The suffix – inae signifies the rank:
a) Tribe
b) Subtribe
c) Suborder
d) Family
Answer: b

Question: Which of the following taxonomic categories contains organisms least similar to one another?
a) Genera
b) Family
c) Class
d) Species
Answer: c

Question: Olericulture is cultivation of:
a) Flowers
b) Vegetables
c) Fruits
d) All the above
Answer: b

Question: Which of the following is a species?
a) Tamarindus
b) Homo
c) Triticum aestivam
d) Indica
Answer: d

Question: Classification systems have many advantages. Which of the following is not a goal of biological classification?
a) To depict convergent evolution
b) To clarify relationships among organisms
c) To help us remember organisms and their traits
d) To identify and name organisms
Answer: a

Question: Which of the following species are restricted to a given area?
a) Sympatric species
b) Allopatric species
c) Sibling species
d) Endemic species
Answer: d

Question: Cohort is a group of correlated:
a) Order
b) Species
c) Genera
d) Families
Answer: d

Question: In taxonomy the first step is:
a) Identification
b) Nomenclature
c) Classification
d) Affinities
Answer: a

Question: Which is not the component of taxonomy?
a) Identification
b) Responsiveness
c) Nomenclature
d) Classification
Answer: b

Question: The timing of seasonal activity of plants in relation to change in environmental conditions is termed as:
a) Dendrochronology
b) Phenology
c) Time lapse
d) Biological clock
Answer: b

Question: The word ending with – aceae indicates:
a) Genera
b) Family
c) Order
d) Class
Answer: b

Question. Read the following and choose the correct combinations:
A. Biosphere Reserves           1. 16
B. National Parks                    2. 34
C. Sanctuaries                        3. 90
D. Biodiversity hot spots         4. 448
a. A-3 B-1 C-4 D-2
b. A-2 B-1 C-4 D-3
c. A-3 B-1 C-2 D-4
d. A-1 B-3 C-4 D-4
Answer: a

Question. Match the columns and find out the correct combination:
Common name        Biological name
A. Tobacco              1. Mangifera indica
B. Potato                 2. Triticum vulgare
C. Brinjal                 3. Nicotiana tabacum
D. Wheat                4. Solanum tuberosum
                               5. Solanum melongena
a. A-4 B-3 C-1 D-2
b. A-3 B-4 C-5 D-2
c. A-1 B-2 C-3 D-4
d. A-2 B-1 C-4 D-3
Answer: b

Question. Match the columns and find out the correct combination:
A. Couplet               1. Information of any one taxon
B. Lead                    2. Preserved specimen
C. Monograph         3. Specially designed for ready reference
D. Manuals              4. Each statement in the key
                                5. A pair of contrasting characters
a. A-5 B-4 C-1 D-3
b. A-4 B-2 C-3 D-1
c. A-1 B-3 C-2 D-4
d. A-3 B-1 C-4 D-2
Answer: a

Question. Read the following statements and identify the correct statements:
A. Biodiversity refers to the number and types of organisms present on earth.
B. The local names would vary from place to place, even within a country.
C. The number of species that are known and described range between 1.7-1.8 million.
D. International Code for Botanical Nomenclature (ICBN) provides scientific names for plants
E. Nomenclature or naming is only possible when the organism is described correctly.
a. A and B only
b. A, B and C only
c. A, D and C only
d. All of these
Answer: d

Question. Incorrect statement are:
A. Animals, mammals, dogs, alsatians represent taxa at different levels.
B. Phenotypic plasticity is the ability of an organism to change its phenotype in response to environment.
C. Nomenclature is only possible when the organism is described correctly.
D. In animals, growth is seen only up to a certain age.
E. Non-living objects also grow if we take increase in body mass as a criteria of growth.
F. Human being is the only organism who is aware of himself.
a. C
b. B
c. A
d. Zero
Answer: d

Question. Consider the following statements and select correct set of option.
A. The most obvious and technically complicated features are metabolism and consciousness.
B. Growth and reproduction are mutually inclusive events for euglenoids and chrysophytes.
C. Generally, families and orders are identified on the basis of aggregates of vegetative characters only.
D. Herbarium serves as quick referral system in taxonomical studies.
a. B, C & D
b. A, C & D
c. B & D
d. A, B, C & D
Answer: c