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The Living World MCQ
Quiz 7
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Q.1
Which of the following statement is false?
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a) Biological names are generally written in Latin and printed in italics.
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b) Both the words in biological name when handwritten are jointly underlined.
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c) In binomial system given by Linnaeus is being practised by biologists all over the world.
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d) In binomial system, first component a genus and second word is specific epithet.
Explanation
Answer:(b)
Q.2
Largest botanical garden in the world is:
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a) Indian Botanical Garden.
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b) Royal Botanical Garden.
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c) National Botanical Garden.
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d) Tropical Botanical Garden.
Explanation
Answer:(b)
Q.3
Omega (Ω) Taxonomy is based on:
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a) Morphology.
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b) Biochemistry.
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c) Cytology.
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d) Evolution.
Explanation
Taxonomy It gives detailed information regarding the variety of biology. It provides the necessary information required in the other branches of biology. It also helps in determining physiology of organisms From the various stages of classification the types of taxonomy are defined: - i) Alpha (α) Taxonomy: - Another name of it is the classical taxonomy. It involves description and naming of organisms. It is the parent of other types of taxonomy. ii) Beta (β) Taxonomy: - In addition to morphological description, it also involves consideration of affinities and their inter-relationship between separate group of species. iii) Gama (γ) Taxonomy: - It is concerned with description, inter-relationship and evolution of one species from the other. iv) Omega (ω) Taxonomy: - It is the modern experimental taxonomy denoted by Epling, in which the taxonomic activities have been enriched with data from ecology, phyto-chemistry, phyto-geography, cyto-genetics and physiology coupled with adequate computation. Answer:(d)
Q.4
Solanum melongena is:
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a) Tomato.
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b) Brinjal.
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c) Makoi.
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d) Potato.
Explanation
Brinjal Scientific name: Solanum melongena Tomato. Scientific name: Solanum lycopersicum Makoi.Scientific name: Solanum nigrum Potato.Scientific name: Solanum tuberosum Answer:(b)
Q.5
How many of the following statements are wrong: (i) Increase in mass and increase in number of individuals are twin characteristics of reproduction. (ii) In unicellular organisms, reproduction is synonymous with growth. (iii) Cellular organisation of the body is the defining feature of life forms. (iv) Photoperiod affects reproduction in seasonal breeders only in plants. (v) Living organisms are self regulating interactive systems.
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a) 1
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b) 2
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c) 3
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d) 4
Explanation
Increase in mass and increase in number of individuals are twin characteristics/ Properties of Living Organisms.(i) is not correct Photoperiod affects reproductio in seasonal breeders, both plants and animals (iv) is not correct Answer:(b)
Q.6
Which of the following statement regarding universal rules of nomenclature is wrong?
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a) Both the words in a biological name when handwritten are separately underlined.
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b) The first word in a biological name represents the genus.
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c) The first word denoting the genus starts with a capital letter.
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d) Biological names are generally Greek and written in italics.
Explanation
Biological names are generally Greek and when written are underlined . Answer:(d)
Q.7
Which of the following combinations is correct for wheat?
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a) Genus Triticum, family poaceae, order poales, class dicotyledonae.
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b) Genus Triticum, family poaceae, order Sapindales, class monocotyledonae.
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c) Genus Triticum, family poaceae, order poales, class monocotyledonae.
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d) Genus Triticum, family anacardiaceae, order poales, class monocotyledonae.
Explanation
Answer:(c)
Q.8
Which one of the following is not correct statement?
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a) Herbarium is the collection of dried, pressed and preserved plant specimens.
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b) Botanical gardens have collection of living plants for reference.
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c) A museum has collection of photographs of plants and animals.
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d) Key is a taxonomic aid for identification of specimens.
Explanation
A museum has collection of dead remains of plants and animals in preserved form. Answer:(c)
Q.9
Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature?
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a) Biological names can be written in any languages.
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b) The first word in a biological name represents genus name and the second word represents the species name.
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c) The names are written in Latin and are italicised.
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d) When written by hand, the names are to be underlined separately.
Explanation
Answer:(a)
Q.10
Find out the correct sequence of various stages in a herbarium preparation: (i) Drying. (ii) Poisoning. (iii) Collection. (iv) Labelling. (v) Mounting. (vi) Deposition. (vii) Stitching.
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a) (iii) → (i) → (ii) → (v) → (vii) → (iv) → (vi).
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b) (iii) → (ii) → (iv) → (v) → (vi) → (vii) → (i).
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c) (iii) → (i) → (ii) → (v) → (vii) → (vi) → (iv).
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d) (iii) → (i) → (ii) → (vii) → (v) → (vi) → (v).
Explanation
Answer:(a)
Q.11
Select the incorrect statement:
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a) Museums often have collection of skeletons.
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b) Key is a taxonomic aid for identification of specimens.
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c) Taxonomic key are based on contrasting characters.
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d) Monograph is useful in providing information for identification of name of species found in an area.
Explanation
Monograph a detailed written study of a single specialized subject or an aspect of it. Monographs try to review all the facts about a taxonomic group. Species descriptions (includes morphology, phenology, ethnobotany, distribution, specimens cited, common names, etymology, etc.) Answer:(d)
Q.12
The individuals belong to the same species, if they are:
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a) Reproductively isolated.
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b) Morphologically similar.
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c) Interbreeding and produce sterile offsprings.
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d) Interbreeding and produce fertile offsprings.
Explanation
Answer:(d)
Q.13
What do the three different words signify in the given scientific name? "Solanum nigrum Linn"
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a) Generic name, specific name and author’s name.
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b) Specific name, generic name and author’s name.
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c) Generic name, specific name and variety name.
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d) Specific name, generic name and variety name.
Explanation
Answer:(a)
Q.14
Scientific name of “Tobacco mosaic virus” is standardised through the rules of:
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c) ICVN.
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d) ICNB.
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a) ICBN.
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b) ICZN.
Explanation
ICVN = International Code of Viral Nomenclature ICBN = International Code of Botanical Nomenclature ICZN =International Code of Zoological Nomenclature ICNB = International Code of Nomenclature of Bacteria Answer:(c)
Q.15
Phenetic classification is based on:
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a) Ancestral linkage.
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b) Observable characteristics of existing organisms.
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c) Sexual characteristics.
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d) Dendrogram based DNA characteristics.
Explanation
phenetics in biology. a system of classification based on similarities between organisms without regard to their evolutionary relationships. Answer:(b)
Q.16
Consider the following statements regarding scientific name: (i) The idea of binomial nomenclature was first introduced by Gaspard Bauhin. (ii) Scientific names are always in Greek. (iii) The first name in scientific name is generic name. (iv) Generic and specific name starts with small letters. Segregate the above statements as true (T) or false (F) by selecting the correct option:
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a) FFTF.
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b) TTTT.
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c) FFFT.
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d) FTFT.
Explanation
The idea of binomial nomenclature was first introduced by Carl Linnaeus (i) is not correct Sometimes a genus name or specific descriptor is simply the Latin or Greek name. (ii) is not correct Genus starts with a capital letter while the specific epithet starts with a small letter. Answer:(a)
Q.17
Which one of the following shows the hierarchial arrangement of taxonomic categories of plants in ascending order?
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a) Genus → Species → Family → Order → Class → Division → Kingdom
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b) Species → Genus → Family → Class → Order → Division → Kingdom.
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c) Species → Genus → Family → Class → Division → Order → Kingdom.
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d) Species → Genus → Family → Order → Class → Division → Kingdom.
Explanation
Answer:(d)
Q.18
Read the statements given below and identify the correct ones: (i) Chemotaxonomy is based on the similarities and dissimilarities in the structure of certain chemical compounds among the organism. (ii) Karyotaxonomy is based on the nuclear and chromosomal studies. (iii) Term taxonomy was coined by Linnaeus. (iv) ICBN is for the nomenclature of bacteria.
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a) (i), (ii) and (iii) are correct.
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b) (i) and (ii) are correct.
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c) (iii) and (iv) are correct.
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d) (i) and (iii) are correct.
Explanation
The International Code of Botanical Nomenclature (ICBN) is the set of rules and recommendations dealing with the formal botanical names that are given to plants. Answer:(b)
Q.19
Fill in the blanks: (i) The term taxonomy was given by .......... (ii) Binomial nomenclature was proposed by ........... (iii) The term taxon was used for the first time by .......... (iv) The smallest unit of classification is known as .......
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a) (i) – Linnaeus, (ii) – Mayr, (iii) – John Ray, (iv) – Family.
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b) (i) – John Ray, (ii) – Aristotle, (iii) – Darwin, (iv) – Species.
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c) (i) – De condole, (ii) – Linnaeus, (iii) – Mayr, (iv) – Species.
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d) (i) – Aristotle, (ii) – John Ray, (iii) – Mayr, (iv) – Family.
Explanation
Answer:(c)
Q.20
Which of the following pair is wrongly matched about the taxonomic arrangement of cat?
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a) Scientific name – Felis domestica.
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b) Family – Felidae.
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c) Order – Mammalia.
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d) Phylum – Chordata.
Explanation
Mammalia is a class Answer:(c)
Q.21
Choose the correct pair option: (i) Growth by mass – Defining property. (ii) Hominidae – Family of humans. (iii) Potato and brinjal – belong to the same species. (iv) The specialised gardens with collections of living plants – Indian Botanical Garden. (v) Biological names – Seldom Latin.
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a) (i), (ii) and (v).
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b) (ii) and (iv).
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c) (i), (ii) and (iv).
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d) (ii), (iii) and (iv).
Explanation
(i) not correct as Cellular metabolism is defining characteristic (ii) not correct as Potato: Species: S. tuberosum and brinjal: Species: S. melongena (iii) correct as Hominidae was originally the name given to the family of humans and their (extinct) close relatives, with the other great apes (that is, the orangutans, gorillas, and chimpanzees) all being placed in a separate family, the Pongidae (iv) is correct : A botanical garden or botanic garden is a garden dedicated to the collection, cultivation, preservation and display a wide range of plants labelled with their botanical names (v) iis incorrect: Biological name written in italic or underline Answer:(b)
Q.22
Match the column I with Column II:
Column I
Column II
a. Royal Botanical Garden
Howrah
b. Indian botanical garden
Lucknow
c. National botanical research institute
Kew (England)
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a) a → 3; b → 2; c → 1
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b) a → 3; b → 1; c → 2
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c) a → 1; b → 2; c → 3
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d) a → 1; b → 3; c → 2
Explanation
Royal Botanic Gardens, Kew (brand name Kew) is a non-departmental public body in the United Kingdom sponsored by the Department for Environment, Food and Rural Affairs. a = 3 The Acharya Jagadish Chandra Bose Indian Botanic Garden previously known as Indian Botanic Garden is situated in Shibpur, Howrah near Kolkata. They are commonly known as the Calcutta Botanical Garden, and previously as the Royal Botanic Garden, Calcutta b =1 The National Botanical Research Institute is a research institute of CSIR in Lucknow. It is engaged in the field of taxonomy and modern biology c = 2 Answer:(b)
Q.23
Growth and reproduction are mutually exclusive events in:
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a) Lower plants.
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b) Lower animals.
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c) Higher plants and animals.
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d) Unicellular organisms.
Explanation
In unicellular organisms growth and reproduction are inclusive events because they grow when they reproduce i.e. when they divide. While in higher animals growth refers to cell enlargement , cell differentiations leading to formation of different tissues , then organs and whole organism as such . Animals can grow upto a certain age but plants can grow on forever. (If there were no physical and environmental stresses plants can grow on and on and on) Also , Some animals can have normal body growth but they still can be sterile. This is why growth and reproduction are mutually exclusive events in higher plants and animals. Answer:(c)
Q.24
The title ‘Alexander Agassiz Professor of Zoology Emeritus’ goes to:
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a) P. Maheshwari.
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b) Carolus Linnaeus.
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c) E. Mayr.
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d) G. N. Ramachandran.
Explanation
Mayr joined Harvard's Faculty of Arts and Sciences in 1953 as Alexander Agassiz Professor of Zoology and led Harvard's Museum of Comparative Zoology from 1961 to 1970 Answer:(c)
Q.25
For the identification of the name of species found in an area, one would use:
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a) Manuals.
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b) Catalogues.
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c) Monographs.
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d) Museum.
Explanation
Answer:(a)
Q.26
Information on any one taxon can be taken out by:
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a) Monographs.
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b) Catalogues.
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c) Flora.
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d) Manuals.
Explanation
Monograph. A written account or description of a single thing, or class of things; a special treatise on a particular subject of limited range . Catalog is simply a listing of all species organized in some way The word "flora" refers to the plants occurring within a given region as well as to the publication of scientific descriptions of those plants. Manuals are useful in providing information for identification of names of species found in an area. Answer:(a)
Q.27
Index of plant species of a particular area can be studied by means of:
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a) Biological Garden.
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b) Manuals.
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c) Keys.
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d) Flora.
Explanation
The word "flora" refers to the plants occurring within a given region as well as to the publication of scientific descriptions of those plants. Answer:(d)
Q.28
Study the four statements (I-IV) given below and select the two correct ones out of them: I. Definition of biological species was given by Ernst Mayr. II. Photoperiod does not affect reproduction in plants. III. Binomial nomenclature system was given by RH Whittaker. IV. In unicellular organisms, reproduction is synonymous with growth. The two correct statements are :
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a) II and III.
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b) III and IV.
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c) I and IV.
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d) I and II.
Explanation
II : is not correct as In plants photoperiod directly affects flowering by regulating the secretion of florigen and vernalin. Plants flower in response to the relative lengths of day and night. Plants produce pollen when pollinators will be active and help in transfer of pollens. Binomial nomenclature system was given by Carl Linnaeus Answer:(c)
Q.29
lls regulate their activity through
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a) Flow of energy.
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b) Flow of materials.
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c) Flow of information .
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d) Flow of smoke
Explanation
With out energy no activity is possible, activity may be movement of materials including solids gases or enzymes or information, Answer : (a)
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