1.  adaptive radiation

2.  seasonal migration

3.  brood parasitism

4.  connecting links

4
Correct Answer :

adaptive radiation


Explanation :
No Explanation available for this question

1.  adaptations due to geographical isolation  

2.  evolution of different species from a common ancestor  

3.  migration of members of a species to different geographical areas  

4.  power of adaptation in an individual to a variety of environments  

4
Correct Answer :

evolution of different species from a common ancestor

 


Explanation :
No Explanation available for this question

1.  Darwinian variations are small and directionless

2.  fitness is the end result of the ability to adapt and gets selected by nature

3.  all mammals except whales and camels. have seven cervical vertebrae  

4.  mutations are random and directional  

4
Correct Answer :

fitness is the end result of the ability to adapt and gets selected by nature


Explanation :
No Explanation available for this question

1.  the true black melanic forms arise by a recurring random mutation  

2.  the melanic form of the moth has no selective advantage over lighter form in industrial area

3.  the lighter form moth has no selective advantage either in polluted industrial area or non-polluted area  

4.  melanisna is :a pollution generated-feature phenom  

4
Correct Answer :

the true black melanic forms arise by a recurring random mutation

 


Explanation :
No Explanation available for this question

1.  Phylogeny

2.  Ancestry

3.  Palaeontology 

4.  Ontogeny selection

4
Correct Answer :

Phylogeny


Explanation :
No Explanation available for this question

1.  Mutations

2.  Reproductive Isolation

3.  Sexual Reproduction

4.  All of these

4
Correct Answer :

All of these


Explanation :
No Explanation available for this question

1.  Darwin

2.  Lamarck

3.  Weismarin

4.  Herbert SPencer

4
Correct Answer :

Lamarck


Explanation :
No Explanation available for this question

1.  Parasites and predators as natural enemies

2.   Survival of the fittest

3.   Struggle for existence

4.  Discontinuous variations

4
Correct Answer :

Discontinuous variations


Explanation :
No Explanation available for this question

1.  Parasites and predators as natural enemies

2.   Survival of the fittest

3.   Struggle for existence

4.  Discontinuous variations

4
Correct Answer :

Discontinuous variations


Explanation :
No Explanation available for this question

1.  natural selection

2.  induced mutation

3.  geographical isolation 

4.  reproductive isolation

4
Correct Answer :

natural selection


Explanation :
No Explanation available for this question

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