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Living World MCQs | Living World Short Questions(MCQs) & Answers

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Free download in PDF Living World Short Questions and Answers for Competitive Exams. These Living World Objective Questions with Answers are important for competitive exams like NEET, AIIMS, JIPMER, Board Exams and other Pre-Medical Exams.
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41 Energy flow and energy transformation in a living system follow
[A] Biogenetic law
[B] Law of thermodynamics
[C] Law of limiting factor
[D] Liebig’s law of minimum
Answer: Law of thermodynamics
42 Nicotiana is a ————-
[A] Species
[B] Sub-species
[C] Genus
[D] Class
Answer: Genus

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43 The biologically cohesive unit of taxa is
[A] Phylum
[B] Order
[C] Genus
[D] Species
Answer: Species
44 What is a homonym?
[A] Identical name of two different taxa
[B] Two or more names of same taxon
[C] Name given to a taxon in local language
[D] Species name repeats the generic name
Answer: Identical name of two different taxa
45 Species found in different geographical locations are called
[A] Sympatric species
[B] Allopatric species
[C] Sibling species
[D] Morphospecies
Answer: Allopatric species
46 The term phylum was coined by
[A] Linnaeus
[B] Cuvier
[C] Haeckel
[D] Theophrastus
Answer: Haeckel
47 Metabolism refers to
[A] Release of energy
[B] Gain of energy
[C] Catabolism
[D] Gain or release of energy
Answer: Gain or release of energy
48 Which of the following combinations is correct for Wheat?
[A] Genus Triticum, family Poaceae , order Poales, Class Dicotyledonae
[B] Genus Triticum, family Poaceae , order Sapindales, class Monocotyledonae
[C] Genus Triticum, family Poaceae , order Poales, Class Moncotyledonae
[D] Genus Triticum , family Anacardiaceae, order Poales, class Monocotyledonae
Answer: Genus Triticum, family Poaceae , order Poales, Class Moncotyledonae
49 Binomial nomenclature means
[A] One name given by scientists
[B] One scientific name consisting of a generic and specific epithet
[C] Two name, one latinised, other of a person
[D] Two names, one scientific, other local
Answer: One scientific name consisting of a generic and specific epithet
50 Which one of the following has least similar character?
[A] Family
[B] Class
[C] Genus
[D] Species
Answer: Class
51 Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature?
[A] Biological names can be written in any language
[B] The first word in a biological name represents the genus name, and the second is a specific epithet
[C] The names are written in Latin and are italicised
[D] When written by hand, the names are to be underlined
Answer: Biological names can be written in any language
52 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: height of the plant
53 Study the four statements (A–D) given below and select the two correct ones out of them: (A) Definition of biological species was given by Ernst Mayr. (B) Photoperiod does not affect reproduction in plants. (C) Binomial nomenclature system was given by R.H. Whittaker. (D) In unicellular organisms, reproduction is synonymous with growth. The two correct statements are
[A] A and D
[B] A and B
[C] B and C
[D] C and D
Answer: A and D

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