Category: Organic Evolution Theories Mcqs

A.Mendel
B.Darwin and Wallace
C.Lamarck
D.Darwin

A.Elongation of neck and fore limbs of African giraffe
B.Loss of limbs in snakes
C.Both (a) & (b)
D.None of these

A.Organisms tend to grow in the size
B.Organisms inherit the characters acquired by their parents
C.Environment influences the organisms
D.Enormous fertility in the organisms leads to over production

A.Cell Theory
B.Germplasm Theory
C.Abiogenesis Theory
D.Theory of inheritance of acquired characters

A.Enormous fertility in the organisms yet the number is constant
B.Struggle for existence, variation and heredity
C.Survival of fittest and continuous changes in environment
D.All of these

A.Nature selects the forms which are fittest in the struggle for existence
B.Development and efficiency of body organs are an proportion to their use and disuse
C.Variations (environmental or mutations) are respobsible for process of organic evolution
D.The organisms have enormous fertility leading to over production but their number is always kept constant by the nature

A.Developmental anamoly
B.Acquired characters
C.Mutation
D.Natural selection

A.Struggle for existence
B.Survival of the fittest
C.Structural modifications leading to new species
D.None of these

A.Structural modifications leading to a new species
B.Struggle for existence, variation and heredity
C.Both (a) & (b)
D.None of these

A.Muller (1949)
B.Fischer (1958)
C.Wright (1968)
D.All of these