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A group of related genera, with still less number of similarities as compared to the genus and species, constitutes
(a)Order
(b)Class
(c)Family
(d)Division

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Important Questions on The Living World
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Assertion: Species is an ecological unit.
Reason: Individuals of a species share the same ecological niche.

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Reason (R): Species have similar structure and functional characteristics.
The correct option among the following is:

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Match the following
List - I | List - II | ||
(a) | Order | (i) | nigrum |
(b) | Species | (ii) | Polemoniales |
(c) | Family | (iii) | Solanum |
(d) | Class | (iv) | Solanaceae |
(v) | Dicotyledonae |
The correct answer is

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*Note: There was an error in the question of the original paper which is modified here.

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Assertion : Sub species shows minor variations from parent population
Reason : Sub species is reproductively isolated population of a species

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Taxonomic category showing individual organisms with fundamental similarities
Taxonomic category with same hierarchical status
Dicotyledonae
domestica
indica
Insecta
Mangifera
sapiens
Mammalia
Monocotyledonae
vulgare

MEDIUM
A) Hominidae
B) Triticum
C) Spermatophyta
D) sapiens
E) Primata
F) Insecta

HARD
Match the following
List - I | List - II | ||
(a) | Reproductively isolated from the individuals of other species | (i) | Genetic unit |
(b) | Sharing the same ecological niche | (ii) | An evolutionary unit |
(c) | Showing similarity in the karyotype | (iii) | A breeding unit |
(d) | Having similar structural and functional characteristics | (iv) | An ecological unit |
The correct answer is

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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:

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Statement-2: Both A and B are different in correlated morphological characters.

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