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Free download in PDF The Living World Multiple Choice Questions (MCQs) and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
Which one of the taxonomic aids can give comprehensive account of complete compiled information of any one genus or family at a particular time?
[A]
Monograph
[B]
Herbarium
[C]
Flora
[D]
Taxonomic key
(2)
Which of the following is not a characteristic of life?
[A]
Reproduction
[B]
Complex chemical organization
[C]
Adaptation to environmental changes
[D]
Differentiation from cells to tissues
Answer: Differentiation from cells to tissues
(3)
In printed scientific names, only the ______is capitalized.
[A]
family
[B]
genus
[C]
species
[D]
class
(4)
Which two points are known as the twin characteristics of growth?
(i) Increase in mass
(ii) Differentiation
(iii) Increase in number of individuals
(iv) Response to stimuli
[A]
(i) and (ii)
[B]
(i) and (iv)
[C]
(ii) and (iii)
[D]
(i) and (iii)
(5)
Which of the following statements are correct about herbarium?
[A]
It is a store house of collected plant specimens that are dried and preserved on sheets.
[B]
It serves as quick referral systems in taxonomical studies.
[C]
Herbarium sheets contain information about date and place of collection, names, family, collector’s name, etc.
[D]
All of the above
(6)
Which one of the following statements is correct about biodiversity ?
[A]
It is the occurrence of varied type of organisms on earth.
[B]
Each different kind of plant, animal or organism represents a species.
[C]
The number of species that are known and described range between 1.7–1.8million.
[D]
All of the above
(7)
Which of the following statements are correct?
(i) Genus comprises a group of related species.
(ii) Taxon represents a taxonomic group of individual organisms.
(iii) Family comprises a group of related genera.
(iv) Taxonomic category class includes related orders.
[A]
(i), (ii), and (iv)
[B]
(ii) and (iv)
[C]
(i), (iii) and (iv)
[D]
(ii), (iii) and (iv)
Answer: (i), (iii) and (iv)
(8)
Compared to genus, which of the following is less general in characters?
[A]
Family
[B]
Species
[C]
Class
[D]
Division
(9)
For wheat, which of the following combinations is correct?
[A]
Genus Triticum, family Poaceae, order Poales, Class Monocotyledonae
[B]
Genus Triticum, family Poaceae, order Poales, Class Dicotyledonae
[C]
Genus Triticum, family Poaceae, order Sapindales, Class Monocotyledonae
[D]
Genus Triticum, family Anacardiaceae, order Poales, Class Monocotyledonae
Answer: Genus Triticum, family Poaceae, order Poales, Class Monocotyledonae
(10)
Regulation of cells’ activity takes place through
[A]
Flow of substances
[B]
Flow of energy
[C]
Flow of hormones
[D]
Flow of smoke
(11)
Assertion(a): “Biological species” concept helps to ask how species are formed
Reason(r): Concept of biological species is centred around the question of how reproductive isolation comes about
[A]
Both (a) and (r) are correct, but (r) is not the explanation for (a)
[B]
Both (a) and (r) are correct, (r) is the correct explanation for (a)
[C]
(a) and (r) both are incorrect
[D]
(a) is true, (r) is incorrect
Answer: Both (a) and (r) are correct, (r) is the correct explanation for (a)
(12)
The correct sequence of taxonomic categories is:
[A]
Species -> genus -> order -> phylum
[B]
Species -> order -> genus-> kingdom
[C]
Genus -> species -> order -> kingdom
[D]
None of these
Answer: Species -> genus -> order -> phylum
(13)
Taxonomic hierarchy refer to
[A]
Classification of species based on the fossil record
[B]
A list of botanists or zoologists who have worked on the taxonomy of a species or group
[C]
a group of senior taxonomists who decide the nomenclature of animals and plants
[D]
Stepwise arrangement of all categories for classification of animals and plants
Answer: Stepwise arrangement of all categories for classification of animals and plants
(14)
Families are characterized on which of the following features of plant species?
[A]
Anatomy of parts
[B]
External morphology
[C]
Vegetative and reproductive parts
[D]
Seasonal similarities and variations
(15)
The sum total of all the chemical reactions occurring in our body is known as
[A]
metabolism
[B]
growth
[C]
regeneration
[D]
reproduction
(16)
Cell division occurs _______in plants and _______in animals.
[A]
once, twice
[B]
continuously, never
[C]
only up to a certain age, continuously
[D]
continuously, only up to a certain age
(17)
The fungi, the filamentous algae, the protonema of mosses, all easily multiply by _____.
[A]
budding
[B]
fission
[C]
regeneration
[D]
fragmentation
(18)
Which of the following factors exclusively affects reproduction in seasonal breeders, both plants and animals?
[A]
Water
[B]
Temperature
[C]
Photoperiod
[D]
All of these
(19)
The keys are based on contrasting characters generally in a pair called _______.
[A]
flora
[B]
couplet
[C]
both (a) and (b)
[D]
manuals
(20)
Study the following statements and select the correct description of botanical garden.
(i) Plant species are grown for identification purposes.
(ii) Labeling of each plant consists of its botanical name/scientific name and its family.
(iii) Specimens are preserved in the jars and containers.
(iv) It is a type of store house which contains dried, pressed and preserved plants specimens on sheet.
(v) Plant specimen contains a labeling of information about date and place of collection.
[A]
(i) and (ii) only
[B]
(i), (ii) and (iii) only
[C]
(ii) and (iv) only
[D]
All the five statements.
Answer: (i) and (ii) only
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