61.
Darwin explained origin of species through
A
Hybridization
B
Mutation
C
Acquired characters
D
Natural selection
Answer :
Natural selection
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
62.
Humming bird and Hawk illustrate
A
Convergent evolution
B
Homology
C
Adaptive radiation
D
Parallel evolution
Answer :
Adaptive radiation
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
63.
Darwin's theory of pangenesis shows similarity with theory of inheritance of acquired characters then what shall be correct according to it?
A
Useful organs become strong and developed while useless organs become extinct. These organs help in struggle for survival
B
Size of organs increase with ageing
C
Development of organs is due to will power
D
There should be come physical basis of inheritance
Answer :
There should be come physical basis of inheritance
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
64.
The ship on which Darwin worked as naturalist was
A
Beagle
B
Century
C
Seagel
D
Norway
Answer :
Beagle
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
65.
What was the basic principle of Lamarckism
A
Inheritance of acquired characters
B
Survival of the fittest
C
Natural selection
D
Variations
Answer :
Inheritance of acquired characters
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
66.
An important evidence in favour of organic evolution is the occurrence of
A
Analogous and vestigial organs
B
Homologous organs only
C
Homologous and analogous organs
D
Homologous and vestigial organs
Answer :
Homologous and vestigial organs
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
67.
One major criticism of Darwin's theory is that
A
It presumes that environment upon earth has been changing through ages
B
It does not explain variations with heredity
C
It overestimates reproductive capacity of animals and plants
D
It does not explain vestigial organs
Answer :
It does not explain variations with heredity
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
68.
Evolutionary history of an organism is known as
A
Ancestry
B
Paleontology
C
Ontogeny
D
Phylogeny
Answer :
Phylogeny
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
69.
Which of the following primate is the closest relative of humans?
A
Rhesus monkey
B
Orangutan
C
Gorilla
D
Gibbon
Answer :
Gorilla
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
70.
In recent years, DNA sequences (nucleotide sequence) of mt-DNA and $$Y$$ chromosomes were considered for the study of human evolution, because
A
they can be studied from the samples of fossil remains
B
they are small, and therefore, easy to study
C
they are uniparental in origin and do not take part in recombination
D
their structure is known in greater detail
Answer :
they are uniparental in origin and do not take part in recombination
Discuss Question
No explanation is given for this question. Let's discuss the answer together.