What is the most important pre-condition | Class 12 Biology Chapter Evolution, Evolution NCERT Solutions

Question:

What is the most important pre-condition for adaptive radiation?

Answer:

Evolution from the single or common ancestral species is the most important pre- condition for adaptive radiation. During the Eocene and Oligocene period, most of the orders of mammals are originated by going into the ecological niches that were vacated by the extinct dinosaurs. This type of evolution from the common ancestral species to variety of forms which occupy different habitat is known as adaptive radiation. And, this concept was developed by H.F. Osborn in 1898. Example: Darwin’s finches of the Galapagos Island, varies into limb structure of mammals.    


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Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 7: What is the most important pre-condition for adaptive radiation?....