Which of the following would be an example of a population that can show the potential for rapid speciation?

In modern terms, selection refers to :

Adaptive radiations refers to 
1. Power of adaptation in an individual to a variety of environments.
2. Adaptations due to geographical isolation.
3. Evolution of different species from a common ancestor.
4. Migration of members of a species to different geographical areas.
 

What exactly does the nature act upon when selecting an organism?
1. dominant alleles
2. recessive alleles
3. phenotype
4. combined genotype

Darwin's in his natural selection Theory did not believe in any role of which one of the following in organic evolution?  
1. Parasites and predators as natural enemies
2. Survival of the fittest
3. Struggle for existence
4. Discontinuous variations 
 

Both Charles Darwin and A.R.Wallace were influenced by the:
1. writings of J.B.S.Haldane on the origin of life
2. findings of Urey and Miller experiments
3. findings on the Galapagos Islands
4. essay on human population by T.R.Malthus

The ‘phrase’ that will best describe ‘Natural Selection’ will be:
1. differential success in reproduction
2. differential mortality
3. assortative mating
4. descent with modification

Diversification in plant life appeared:

In Darwinian terms “fitness” can best be described as:
1. ability of organism, relative to others in the population, to pass its genes to next generation
2. the number of mates the organism has during its life time
3. its lifespan
4. its physical vigor

Select the correct statement from the following: