EASY
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Which of the following characteristics is mainly responsible for the diversification of insects on land?

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Important Questions on Heredity and Evolution

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In the taxonomic categories which hierarchial arrangement in ascending order is correct in case of animals?
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Assertion (A): Species is an ecological unit.
Reason (R): Species have similar structure and functional characteristics.
The correct option among the following is:
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Science>Biology>Heredity and Evolution>Speciation
The largest unit in which gene flow is possible is;
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During the course of evolution, the process by which the characteristic features of the members of a species modify due to the influence of various factors and thus give rise to the organisms with new characteristic features is called
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Choose the correct set of taxonomic words that belong to the given statements
I) Taxonomic category showing individual organisms with fundamental similarities
II) Taxonomic category with same hierarchical status
a) Dicotyledonae
b) domestica
c) indica
d) Insecta
e) Mangifera
f) sapiens
g) Mammalia
h) Monocotyledonae
i) vulgare
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Population are said to be sympatric when-
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Amongst all the kingdoms, the only taxon that exists in nature as a biologically cohesive unit is the _______

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

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Which one of the following sequences represents the CORRECT taxonomical hierarchy?
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Assertion: Species is an ecological unit.

Reason: Individuals of a species share the same ecological niche.

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Assertion (A): Sub species shows minor variations from parent population

Reason (R): Sub species is reproductively isolated population of a species

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Lions in India are currently restricted to Gir, Gujarat. Efforts are being made to move them to other parts of the country. This is because they are MOST susceptible to extinction due to infectious diseases under the following conditions when present as:
HARD
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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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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:
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Illustrate the taxonomical hierarchy with suitable examples of a plant and an animal.
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Mayr's biological concepts of species is mainly based on
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In hierarchical classification, class is interpolated between:
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Statement-1: Two plants A and B are treated as two taxonomic species if they have different binomial name.

Statement-2: Both A and B are different in correlated morphological characters.
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Science>Biology>Heredity and Evolution>Speciation
Static concept of species was put forward by
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In a hierarchical system of plant classification, which one of the following taxonomic ranks generally ends in 'ceae'?
HARD
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According to latest knowledge the most accepted species concept is