MCQ Questions on Living World
1. A group of plants and animals with similar traits of any rank is
(a) Taxon
(b) Species
(c) Genus
(d) Order
Answer
Answer: (a) Taxon
2. Which is less general in characters as compared to genus
(a) Family
(b) Division
(c) Class
(d) Species
Answer
Answer: (d) Species
3. What is the correct sequence?
(a) Genus-species-order-kingdom
(b) Species-order-phylum-kingdom
(c) Species-genus-order-phylum
(d) Kingdom-phylum-class-order
Answer
Answer: (d) Kingdom-phylum-class-order
4. Metabolism refers to
(a) Release of energy
(b) Gain of energy
(c) Catabolism
(d) Gain or release of energy
Answer
Answer: (b) Gain of energy
5. What is nomenclature?
(a) Genus name is written after species
(b) Genus and species names are written in italics
(c) Genus and species have the same name
(d) The first letter of genus and species name is capital
Answer
Answer: (b) Genus and species names are written in italics
6. The term phylum was coined by
(a) Linnaeus
(b) Cuvier
(c) Haeckel
(d) Theophrastus
Answer
Answer: (c) Haeckel
7. Binomial nomenclature was given by
(a) Linnaeus
(b) Hugo De Vries
(c) John Ray
(d) Huxley
Answer
Answer: (a) Linnaeus
8. Species found in different geographical locations are called
(a) Sympatric species
(b) Allopatric species
(c) Sibling species
(d) Morphospecies
Answer
Answer: (b) Allopatric species
9. 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
Answer: (a) Identical name of two different taxa
10. The biologically cohesive unit of taxa is
(a) Phylum
(b) Order
(c) Genus
(d) Species
Answer
Answer: (d) Species
11. The scientific name of mango is
(a) Mangifera indica
(b) Mangifera Indica
(c) Mangifera indica
(d) Mangifera Indica
Answer
Answer: (c) Mangifera indica
12. Nicotiana is a ————-
(a) Species
(b) Sub-species
(c) Genus
(d) Class
Answer
Answer: (c) Genus
13. 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
Answer: (b) Law of thermodynamics
14. Energy transformation is never 100% efficient because of
(a) Catabolism
(b) Entropy
(c) Homeostasis
(d) Anabolism
Answer
Answer: (b) Entropy
15. The defining characteristic of living beings is
(a) They reproduce
(b) They can digest their food
(c) They respond to external stimuli
(d) They regenerate
Answer
Answer: (c) They respond to external stimuli