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CodeVID-M11-WS
The Living World — Practice Worksheet
Chapter: The Living World
Topic: The Living World
Maximum Marks: 27
Time: 30 minutes
Name: ____________________ Roll No.: __________ Date: ____________

General Instructions

  • All questions are compulsory.
  • Choose the correct option (A, B, C or D) for each question.
  • The answer key is at the end — try the paper first!
Section A — Multiple Choice (1 mark each) 15 × 1 = 15 marks
1.
Which of the following is a defining feature of all living organisms?
  • A.Growth
  • B.Reproduction
  • C.Metabolism
  • D.Large size
2.
Growth in living organisms is said to be intrinsic because it occurs:
  • A.By addition from outside
  • B.From inside, by cell division
  • C.Only in non-living things
  • D.Without any cells
3.
Reproduction is NOT an all-defining feature of life because:
  • A.All organisms reproduce
  • B.Some living organisms (e.g. mules) do not reproduce
  • C.Non-living things reproduce
  • D.It needs metabolism
4.
The most important defining property of living organisms is considered to be:
  • A.Consciousness (response to stimuli)
  • B.Colour
  • C.Weight
  • D.Hardness
5.
The number and types of organisms present on Earth is referred to as:
  • A.Taxonomy
  • B.Biodiversity
  • C.Metabolism
  • D.Systematics
6.
The science of identification, naming and classification of organisms is:
  • A.Ecology
  • B.Genetics
  • C.Taxonomy
  • D.Anatomy
7.
The study of diversity of organisms and their evolutionary relationships is:
  • A.Systematics
  • B.Physiology
  • C.Histology
  • D.Cytology
8.
The two-part scientific naming system is called:
  • A.Binomial nomenclature
  • B.Vernacular naming
  • C.Common naming
  • D.Trinomial naming
9.
Binomial nomenclature was introduced by:
  • A.Charles Darwin
  • B.Carolus Linnaeus
  • C.Aristotle
  • D.Ernst Haeckel
10.
In the name Mangifera indica, the word 'indica' is the:
  • A.Genus
  • B.Family
  • C.Specific epithet (species)
  • D.Order
11.
According to the rules, the genus name is written with:
  • A.A small first letter
  • B.A capital first letter
  • C.All capital letters
  • D.No letters
12.
Each rank or level in the classification hierarchy is called a:
  • A.Taxon
  • B.Species
  • C.Gene
  • D.Cell
13.
The basic unit of classification is the:
  • A.Kingdom
  • B.Family
  • C.Species
  • D.Order
14.
The correct sequence of taxonomic categories from lowest to highest is:
  • A.Species, Genus, Family, Order, Class, Phylum, Kingdom
  • B.Kingdom, Phylum, Class, Order, Family, Genus, Species
  • C.Genus, Species, Order, Family, Class
  • D.Family, Order, Genus, Species, Class
15.
A collection of pressed, dried and mounted plant specimens used as a taxonomic aid is a:
  • A.Herbarium
  • B.Zoo
  • C.Museum of rocks
  • D.Key
Section B — Challenge / Olympiad (2 marks each) 6 × 2 = 12 marks
16.
Metabolic reactions carried out in a test tube (outside the body) are 'living reactions' but the test tube is not living. This shows that life is a property of:
  • A.The organised whole, not isolated reactions
  • B.Any chemical reaction
  • C.Only large organisms
  • D.Non-living matter
17.
As we move up the taxonomic hierarchy from species to kingdom, the number of common characteristics:
  • A.Decreases while group size increases
  • B.Increases while group size decreases
  • C.Stays the same
  • D.Becomes zero
18.
Why must scientific names be in a standardised form (italics, capital genus, small species) worldwide?
  • A.So that one universal name avoids the confusion of varied local names
  • B.To make them harder to read
  • C.Because Latin is the only language
  • D.To hide the organism's identity
19.
A mule cannot reproduce, yet it is undoubtedly living. This is best explained by saying that:
  • A.Reproduction is characteristic but not a universal defining feature
  • B.Mules are non-living
  • C.Reproduction is the only sign of life
  • D.Mules have no metabolism
20.
Two organisms placed in the same FAMILY but different GENERA will share:
  • A.Fewer common features than two in the same genus
  • B.More common features than two in the same genus
  • C.Exactly the same features
  • D.No relationship at all
21.
Which taxonomic aid would a botanist MOST likely use to compare a newly collected plant with previously identified, pressed specimens?
  • A.Herbarium
  • B.Zoological park
  • C.Aquarium
  • D.Planetarium

Answer Key

Section A — Multiple Choice (1 mark each)
  1. (C) Metabolism
  2. (B) From inside, by cell division
  3. (B) Some living organisms (e.g. mules) do not reproduce
  4. (A) Consciousness (response to stimuli)
  5. (B) Biodiversity
  6. (C) Taxonomy
  7. (A) Systematics
  8. (A) Binomial nomenclature
  9. (B) Carolus Linnaeus
  10. (C) Specific epithet (species)
  11. (B) A capital first letter
  12. (A) Taxon
  13. (C) Species
  14. (A) Species, Genus, Family, Order, Class, Phylum, Kingdom
  15. (A) Herbarium
Section B — Challenge / Olympiad (2 marks each)
  1. (A) The organised whole, not isolated reactions
  2. (A) Decreases while group size increases
  3. (A) So that one universal name avoids the confusion of varied local names
  4. (A) Reproduction is characteristic but not a universal defining feature
  5. (A) Fewer common features than two in the same genus
  6. (A) Herbarium
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