When more than one adaptive radiation appears to have occurred in an isolated geographical area,it is called ...... .

The characteristic feature of the ancestral finch was:

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

Select the odd one out.

Adaptive radiation in placental mammals and Australian Marsupials leading to similarity between distant species is an example of . . . . . . .

Given below are two statements with respect to homologous organs.
Statement $I$: These organs are structurally similar but perform different functions.
Statement $II$: Differences in homologous organs are examples of adaptive radiation.
In the light of the above statements,choose the correct option from the list given below.