CBSE Class 11 Biology – MCQ and Online Tests – Unit 1 – The Living World
Every year CBSE schools conducts Annual Assessment exams for 6,7,8,9,11th standards. These exams are very competitive to all the students. So our website provides online tests for all the 6,7,8,9,11th standard’s subjects. These tests are also very effective and useful for those who preparing for any competitive exams like Olympiad etc. It can boost their preparation level and confidence level by attempting these chapter wise online tests.
These online tests are based on latest CBSE syllabus. While attempting these our students can identify the weak lessons and continuously practice those lessons for attaining high marks. It also helps to revise the NCERT textbooks thoroughly.
CBSE Class 11 Biology – MCQ and Online Tests – Unit 1 – The Living World
Question 1.
Binomial Nomenclature was given by
(a) Ernst Mayr
(b) Alexander Agassiz
(c) Carolus Linnaeus
(d) Alexander Agassiz and Carlous Linnaeus
Answer
Answer: (c) Carolus Linnaeus
Explanation:
The system of providing scientific names with two components i.e. generic name and specific epithet is called Binomial Nomenclature.
Binomial Nomenclature was given by Carolus Linnaeus.
Question 2.
Systematics deals with
(a) Nomenclature of new organisms
(b) Evolutionary relationship between organisms
(c) Identification of newly discovered organisms
(d) All of these
Answer
Answer: (d) All of these
Explanation:
Linnaeus used Systema Naturae as the title of his publication.
The scope of systematics includes identification, nomenclature and classification.
Systematics takes into account evolutionary relationship between organisms.
Question 3.
Two taxonomic species are distinguished from each other by
(a) their failure to interbreed
(b) their ability to exchange gene freely
(c) their similarity in morphological characters
(d) discontinuity in a set of correlated characters
Answer
Answer: (a) their failure to interbreed
Explanation:
Two taxonomic species are distinguished from each other by their failure to interbreed.
Question 4.
Musca domestica is common name of
(a) Housefly
(b) Mosquito
(c) Snail
(d) Ant
Answer
Answer: (a) Housefly
Explanation:
Musca domestica is the common name of housefly.
Question 5.
Keystone species are
(a) important for ecosystem
(b) important for plants
(c) endangered species
(d) extinct species
Answer
Answer: (a) important for ecosystem
Explanation:
Keystone species are plants or animals species that play a unique and crucial role in the way an ecosystem functions.
They are very important for ecosystem to function properly.
Question 6.
The study of fish culture is called
(a) ophiology
(b) herpetology
(c) ichthyology
(d) pisciculture
Answer
Answer: (d) pisciculture
Question 7.
National Botanical Research Institute is located in
(a) Shimla
(b) Dehradun
(c) Howrah
(d) Lucknow
Answer
Answer: (d) Lucknow
Explanation:
National Botanical Research Institute is located in Lucknow.
Question 8.
Biosystematics aims at
(a) Identification and arrangement of organisms on the basis of cytological characteristics
(b) The classification of organisms based on broad morphological characters
(c) Delimiting various taxa of organism and establishing their relationships
(d) The classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies
Answer
Answer: (d) The classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies
Question 9.
In angiosperm, characters of flowers are used in classification because
(a) Flowers are attractive
(b) Flowers are large
(c) Characters of flowers are conservative
(d) None of the above
Answer
Answer: (c) Characters of flowers are conservative
Question 10.
Scientific name of plants are given by
(a) International code for Botanical nomenclature
(b) International code for biological plants
(c) Indian code for Botanical nomenclature
(d) International code for zoological nomenclature
Answer
Answer: (a) International code for Botanical nomenclature
Explanation:
The scientific names of plants are given by International code for Botanical nomenclature.
Question 11.
Identify the incorrect match.
(a) Physiology – Study of functions and processes of life
(b) Pedology – Soil science
(c) Limnology – Study of fresh water
(d) Kinesiology – Fossil study
Answer
Answer: (d) Kinesiology – Fossil study
Question 12.
The Phylogenetic system of classification was put forth by
(a) Theophrastus
(b) George Bentham and Joseph Dalton Hooker
(c) Carolus Linnaeus
(d) Adolf Engler and Karl Prantl
Answer
Answer: (d) Adolf Engler and Karl Prantl
Question 13.
A system which gets a continuous flow of energy is called
(a) micropropagated system
(b) closed system
(c) open system
(d) steady state
Answer
Answer: (c) open system
Question 14.
Taxonomic studies depends on
(a) Ecological information of organisms.
(b) Structure of cell and development process of organisms.
(c) External and internal structure of organisms.
(d) All of the above.
Answer
Answer: (d) All of the above.
Explanation:
Taxonomic studies depends on ecological information of organisms, structure of cell and development process of organism and external and internal structure of organisms.
Question 15.
Wheat belongs to division ______.
(a) Angiospermae
(b) Gymnospermae
(c) Poacae
(d) None of the above
Answer
Answer: (a) Angiospermae
Explanation:
Wheat belongs to Angiospermae division.
Question 16.
Which of the following shows maximum diversity?
(a) Plantas
(b) Animalia
(c) Monerans
(d) Protistans
Answer
Answer: (b) Animalia
Question 17.
Which of the following does not come under taxon?
(a) Species
(b) Kingdom
(c) Division
(d) Key
Answer
Answer: (d) Key
Explanation:
Taxon is a group of one or more population of organisms.
Kingdom, division and species come under taxon but key is taxonomical aid.
Question 18.
The ozone layer is found in the
(a) hydrosphere
(b) stratosphere
(c) lithosphere
(d) troposphere
Answer
Answer: (b) stratosphere
Question 19.
Solanum, Panthera, Homo are examples of
(a) Family
(b) Division
(c) Genera
(d) Species epithet
Answer
Answer: (c) Genera
Explanation:
Solanum, Panthera, Homo are examples of generic names.
Question 20.
Which of the following is correct?
(a) Musca domestica Order – Diptera Family – Muscidae Phylum – Arthropoda
(b) Mangifera indica Order – Sapindales Family – Anacardiaceae Phylum – Gymnospermae
(c) Triticum aestivum Order – Poles Family – Monocotyledons Phylum – Angiospermae
(d) Panthera leo Order – leo Family – Felidae Phylum – Mammalia
Answer
Answer: (a) Musca domestica Order – Diptera Family – Muscidae Phylum – Arthropoda
Explanation:
Mangifera indica belongs to Phylum Angiospermae.
Triticum aestivum belongs to family Poaceae.
Panthera leo belongs to order Carnivora.
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