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
When two species of different geneology come to resemble each other as a result of adaptation, the phenomenon is termed
1. divergent evolution
2. micro-evolution
3. co-evolution
4. convergent evolution
Which one of the following options gives one correct example each of convergent evolution and divergent evolution?
Convergent evolution | Divergent evolution |
1. Eyes of Octopus and mammals | Bones of forelimbs of vertebrates |
2. Thorns of Bougainvillea and tendrils of Cucurbita | Wings of butterflies and birds |
3. Bones of forelimbs of vertebrates | Wings of butterfly and birds |
4. Thorns of Bougainvillea and tendrils of Cucurbita | Eyes of Octopus and mammals |
Evolutionary convergence is the development of
1. common set of characters in the group of different ancestry
2. dissimilar characters in closely related groups
3. common set of characters in closely related groups
4. random mating
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