Biology
General
Easy
Question
‘Use and disuse’ theory was proposed by
- Lamarck
- Darwin
- Hugo de Vries
- Malthus
The correct answer is: Lamarck
Lamarck’s theory of evolution was published in 
in the year 1809. It is popularly known as ‘the inheritance of acquried characters in organisms’. According to this, if an organ is used continuously and constantly, it will tend to become highly developed, whereas disuse results in its degeneration.
Related Questions to study
Biology
Theory of special creation arguments that
I. all living organisms were created as such
II. the diversity was always the same since creation
III. earth is 4000 years old
Choose the right option to complete the given statement
Theory of special creation arguments that
I. all living organisms were created as such
II. the diversity was always the same since creation
III. earth is 4000 years old
Choose the right option to complete the given statement
BiologyGeneral
Biology
Ancestor of man, who first stood erect, was
Ancestor of man, who first stood erect, was
BiologyGeneral
Biology
The first enzyme on the primitive earth was/were
The first enzyme on the primitive earth was/were
BiologyGeneral
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Change of frequency of alleles in a population results in evolution. This statement is proposed in
Change of frequency of alleles in a population results in evolution. This statement is proposed in
BiologyGeneral
Biology
In the early earth, organic acids were produced by the combination of 
with
In the early earth, organic acids were produced by the combination of with
BiologyGeneral
Biology
Major radiations of mammals, birds and pollinating insects took place in which epoch?
Major radiations of mammals, birds and pollinating insects took place in which epoch?
BiologyGeneral
Biology
Cosmozoic theory was proposed by
Cosmozoic theory was proposed by
BiologyGeneral
Biology
Bird with average sized wings survived in the severe strom but the short winged birds died. It shows
Bird with average sized wings survived in the severe strom but the short winged birds died. It shows
BiologyGeneral
General
If 
then x lies in
If then x lies in
GeneralGeneral
General
An egg is released and fertilised by sperm at which stage
An egg is released and fertilised by sperm at which stage
GeneralGeneral
General
The cavity contained in graffian follicle is
The cavity contained in graffian follicle is
GeneralGeneral
Maths-
Five persons entered the lift cabin on the ground floor of an 8-floor house. Suppose each of them can leave the cabin independently at any floor beginning with the first. Find the total number of ways in which each of the five persons can leave the cabin
i) at any one of the 7 floors
Five persons entered the lift cabin on the ground floor of an 8-floor house. Suppose each of them can leave the cabin independently at any floor beginning with the first. Find the total number of ways in which each of the five persons can leave the cabin
i) at any one of the 7 floors
Maths-General
Maths-
If N = 7p+4.5q.23 is a perfect cube, where 'p' and 'q' are positive integers, the smallest possible value of 'p + q' is-
If N = 7p+4.5q.23 is a perfect cube, where 'p' and 'q' are positive integers, the smallest possible value of 'p + q' is-
Maths-General
Maths-
For 3 r n nCr + 3 nCr–1 + 3 nCr–2 + nCr–3 is-
For 3 r n nCr + 3 nCr–1 + 3 nCr–2 + nCr–3 is-
Maths-General
Maths-
The number of different words of three letters which can be formed from the word "PROPOSAL", if a vowel is always in the middle are-
The number of different words of three letters which can be formed from the word "PROPOSAL", if a vowel is always in the middle are-
Maths-General
