Darwin's finches and Australian marsupials are suitable examples of adaptive radiation- Justify the statement.

Explanation

Darwin.s finches are the birds whose common ancestor arrived on the Galapagos about 2million year ago. During that time, Darwin.s finches have evolved into 14 recognized species differing in body size, beak shape and feeding behavior. Changes in the size and form of the beak have enabled different species to utilize different food resourees such as insects, seeds and nectar from cactus flowers and blood from iguanas, all driven by Natural selection. Genetic variation in the ALX1l gene in the DNA of Darwin finches is associated with variation in the beak shape. Mild mutation in the ALXI gene leads to phenotypic change in the shape of the beak of the Darwin finches.