In Australia, marsupials and placental mammals have evolved to share many similar characteristics. This type of evolution may be referred to as :

1. Adaptive Radiation

2. Divergent Evolution

3. Cyclical Evolution

4. Convergent Evolution

A population of a species invades a new area. Which of the following condition will lead to Adaptive Radiation?

The evolutionary process giving rise to new species
adapted to new habitats and ways of life is called
adaptive radiation. For example,

1. Darwin’s finches in Galapagos Islands.
2. Australian marsupials that radiated to form new
species.
3. Wolf and Tasmanian wolf.
4. Both (a) and (b)

Which of the following is an example of homologous organs?

1. Wings of butterfly and of birds

2. Eye of the Octopus and of mammals

3. Sweet potato and potato

4. Thorns of Bougainvillea and tendrils of Cucurbita

Structures given in the figure below represent the example of

1. Adaptive convergence

2. Convergent evolution

3. Analogy

4. Divergent evolution

The eye of the octopus and the eye of the cat show different patterns of structure, yet they perform a similar function. This is an example of:

Which of the following is not a result of convergent evolution?

1.  Potato and sweet potato

2.  Flippers of penguins and dolphins

3.  Eye of octopus and a mammal

4.  Thorn and tendril of Bougainvillea

Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of:

1. Analogous organs

2. Adaptive radiation

3. Homologous organs

4. Convergent evolution

The finches of Galapagos islands provide an evidence in favour of

1. special creation

2. evolution due to mutation

3. retrogressive evolution 

4. biogeographical evolution 

Adaptive radiation can be observed in all cases except

1. marsupial radiation

2. Variety of beaks in Darwin's finches

3. Placental diversification in North American

4. Wing structure of butterfly, bat and bird