Grade 11 : Biology - Living World (Set 3)

Question 1

Question 1: Which of the following combinations correctly pairs a characteristic of living organisms with its status as a defining feature?

Accepted Answer

C) Cellular Organization — Defining feature because it is present in all living forms without exception

Answer

A) Growth — Defining feature because all living organisms grow continuously throughout life

Answer

B) Reproduction — Defining feature because all living organisms are capable of reproducing offspring

Answer

D) Metabolism — Non-defining feature because metabolic reactions can occur outside cells in test tubes

Question 2

Statements regarding Binomial Nomenclature:
I. The generic name starts with a capital letter while the specific epithet starts with a small letter.
II. Both words, when handwritten, are separately underlined.
III. The name of the author appears after the specific epithet in italics.

Question 2: Which of the statement(s) listed above is/are INCORRECT according to ICBN rules?

Accepted Answer

B) III only

Answer

A) I only

Answer

C) II and III

Answer

D) I and II

Question 3

Question 3: As we proceed from Species to Kingdom in a taxonomic hierarchy, what happens to the number of common characteristics shared by organisms?

Accepted Answer

D) It decreases progressively

Answer

A) It increases progressively

Answer

B) It remains constant across all ranks

Answer

C) It first increases and then decreases

Question 4

Match the organism in Column I with its corresponding taxonomic Family in Column II:
Column I: (a) Human, (b) Housefly, (c) Mango, (d) Wheat
Column II: (1) Anacardiaceae, (2) Poaceae, (3) Hominidae, (4) Muscidae

Question 4: Select the correct matching option:

Accepted Answer

A) a-3, b-4, c-1, d-2

Answer

B) a-4, b-3, c-2, d-1

Answer

C) a-3, b-1, c-4, d-2

Answer

D) a-2, b-4, c-1, d-3

Question 5

Question 5: Which piece of information is NOT recorded on a standard Herbarium sheet label?

Accepted Answer

C) Height and biomass of the living plant in its natural habitat

Answer

A) Date and place of collection

Answer

B) English, local, and botanical names

Answer

D) Collector's name and plant family

Question 6

Question 6: In taxonomic keys, what are the contrasting pair of characters and each single statement in the key termed as, respectively?

Accepted Answer

B) Couplet and Lead

Answer

A) Lead and Couplet

Answer

C) Monograph and Manual

Answer

D) Taxon and Rank

Question 7

Question 7: Which taxonomic rank/category is represented by 'Sapindales' for Mango (*Mangifera indica*) and 'Poales' for Wheat (*Triticum aestivum*)?

Accepted Answer

D) Order

Answer

A) Family

Answer

B) Class

Answer

C) Genus

Question 8

Question 8: Which of the following is considered the most technically complicated and defining property of all living organisms?

Accepted Answer

A) Consciousness and response to external environmental stimuli

Answer

B) Increase in body mass by cell division

Answer

C) Production of progeny resembling parents

Answer

D) Morphological adaptation to local climate

Question 9

Match the taxonomic aid with its description:
1. Flora — (i) Contains information on any one taxon
2. Manual — (ii) Gives actual account of habitat and distribution of plants of a given area
3. Monograph — (iii) Provides information for identification of names of species found in an area

Question 9: Select the correct combination:

Accepted Answer

C) 1-ii, 2-iii, 3-i

Answer

A) 1-iii, 2-ii, 3-i

Answer

B) 1-i, 2-iii, 3-ii

Answer

D) 1-ii, 2-i, 3-iii

Question 10

Question 10: What does the acronym ICBN stand for in plant taxonomy?

Accepted Answer

B) International Code for Botanical Nomenclature

Answer

A) International Code of Botanical Nomenclature

Answer

C) International Council of Biological Nomenclature

Answer

D) Indian Code for Botanical Nomenclature

Question 11

Question 11: Ernst Mayr, often hailed as 'The Darwin of the 20th century', popularized which definition of species?

Accepted Answer

D) Biological species concept based on reproductive isolation and interbreeding

Answer

A) Morphological species concept based solely on physical structures

Answer

B) Ecological species concept based on niche adaptation

Answer

C) Phylogenetic species concept based on DNA sequences

Question 12

Question 12: In biological classification, how is the term 'Taxon' correctly defined?

Accepted Answer

A) A concrete biological unit representing a real organismic group at any rank

Answer

B) An abstract category without real physical representation

Answer

C) A rule governing the naming of organisms

Answer

D) A collection of preserved animal specimens

Question 13

Statement I: Non-living objects can exhibit growth by accumulation of material on their surface.
Statement II: Isolated metabolic reactions in vitro are living organisms because metabolic reactions take place in them.

Question 13: Choose the correct option evaluating the statements above:

Accepted Answer

C) Statement I is true, but Statement II is false

Answer

A) Both Statement I and Statement II are true

Answer

B) Both Statement I and Statement II are false

Answer

D) Statement I is false, but Statement II is true

Question 14

Question 14: Which option correctly lists the hierarchy of taxonomic categories in ascending order (from lowest to highest rank)?

Accepted Answer

B) Species → Genus → Family → Order → Class → Phylum → Kingdom

Answer

A) Species → Family → Genus → Order → Class → Phylum → Kingdom

Answer

C) Kingdom → Phylum → Class → Order → Family → Genus → Species

Answer

D) Genus → Species → Family → Class → Order → Phylum → Kingdom

Question 15

Question 15: Which famous botanical institute is correctly matched with its location?

Accepted Answer

A) National Botanical Research Institute (NBRI) — Lucknow, India

Answer

B) Royal Botanic Garden — Kolkata, India

Answer

C) Indian Botanical Garden — Kew, England

Answer

D) Lloyd Botanical Garden — New Delhi, India

Question 16

Question 16: What are the Class and Phylum of the housefly (*Musca domestica*)?

Accepted Answer

C) Class Insecta, Phylum Arthropoda

Answer

A) Class Insecta, Phylum Annelida

Answer

B) Class Diptera, Phylum Arthropoda

Answer

D) Class Muscidae, Phylum Arthropoda

Question 17

Question 17: How are larger animal specimens such as birds and mammals usually preserved in biological museums?

Accepted Answer

D) Stuffed and preserved after removing internal organs

Answer

A) Preserved in jars filled with formalin solution

Answer

B) Dried and pinned inside glass-covered insect boxes

Answer

C) Kept alive in protected enclosures

Question 18

Question 18: What is the intrinsic nature of taxonomic keys used for identification of plants and animals?

Accepted Answer

A) Analytical in nature

Answer

B) Synthetic in nature

Answer

C) Morphological only

Answer

D) Quantitative in nature

Question 19

Question 19: According to rules of binomial nomenclature, which format represents the scientific name of mango correctly?

Accepted Answer

B) Mangifera indica Linn.

Answer

A) Mangifera Indica L.

Answer

C) mangifera indica

Answer

D) Mangifera Indica

Question 20

Question 20: The term 'Systematics' is derived from the Latin word 'systema'. Who titled his landmark publication 'Systema Naturae'?

Accepted Answer

C) Carolus Linnaeus

Answer

A) Aristotle

Answer

B) John Ray

Answer

D) Ernst Mayr

Grade 11 : Biology - Living World (Set 3)