The diversity in the type of beaks of finches adapted of different feeding habits on the Galapages islands as observed by Darwin, provides evidence for
Origin of species by natural selection
Intraspecific variations
Intraspecific competition
Interspecific competition
Kangaroo is a member of which order
What is the most important pre-condition for adaptive radiation ?
Explain the interpretation of Charles Darwin when he observed a variety of small black birds on Galapagos Island ?