Jurrassic period of the Mesozoic era is Characterised by 

1.	radiation of reptiles and origin of mammal-like reptiles
2.	dinosaurs become extinct and angiosperms appear
3.	flowring plants and first dinosaurs appear
4.	gymnosperms are dominant plants and first birds appear

Which one of the following is regarded as the direct ancestor of modern man? 

1. Homo erectus 

2. Ramapithecus 

3. Homo habilis

4. Cro-magnon man

Which one of the following sequences was proposed by Darwin and Wallace for organic evolution?                                                                                
1. Variations -> natural selection -> overproduction -> constancy of population size

2. Overproduction -> variations -> constancy of population size -> natural selection 

3. Variations -> constancy of population size -> overproduction -> natural selection

4. Overproduction -> constancy of population size -> variations -> natural selection

Industrial melanism is an example of 

The homologous organs are those that show similarity in

1. size

2. origin

3. function

4. appearance 

The occurrence of endemic species in South America and Australia is due to  

Genetic drift is change of 

1. gene frequency in same generation 

2. appearance of recessive genes

3. gene frequency from one generation to next 

4. None of the above

Thorn of Bougainvillea and tendril of Cucurbita are examples of  
1. analogous organs

2. homologous organs

3. vestigial organs

4. retrogressive evolution 

Adaptive radiation refers to

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

Homo sapiens evolved during

1. Pleistocene 

2. Oligocene

3. Pliocene 

4. Miocene