On Galapagos island, Darwin observed variation in beaks of birds (Darwin's finches) and he concluded:
1.  Inter species variation
2.  Intraspecies variation
3.  Natural selection according to food
4.  Inheritance of acquired characters

Diversification in plant life appeared:

1. Due to abrupt mutations

2. Suddenly on earth

3. By seed dispersal

4. Due to long periods of evolutionary changes 

According to Oparin, which one of the following was not present in the primitive atmosphere of the earth?

1. Oxygen

2. Hydrogen

3. Water vapour

4. Methane 

Industrial melanism is an example of:

Which one of the following was obtained by S. Miller in his experiments on the origin of life before 1953:
1.  Simple sugars
2.  Amino acids
3.  Nucleotide
4.  Peptides

Which evidence of evolution related to Darwin's finches:

1. Evidence from biogeographical distribution

2. Evidence from comparative anatomy

3. Evidence from embryology

4. Evidence from palaeontological

According to fossils that have been discovered till now, the origin and evolution of man started from which country?

1. France

2. Java

3. Africa

4. China

Which one of the following sequences was proposed by Darwin and Wallace for organic evolution?

Industrial melanism is an example of:
 

In a random mating population in equilibrium, which of the following brings about a change in gene frequency in a non-directional manner?