What is the most important pre-condition for adaptive radiation ?
There should be same geographical area. Adaptative is shown by different members of the same ancestor. Pre-existing variations are the most important pre-condition for adaptive radiation. These variations spreads to different habitats and developed in different habits.
Identify figure.
In Australia, marsupials and placental mammals have evolved to share many similar characteristics. This type of evolution may be referred to as
Explain the interpretation of Charles Darwin when he observed a variety of small black birds on Galapagos Island ?