Question

The finches that Darwin studied in the Galapagos islands have evolved with different types of beaks: drilling, cracking, tearing, and fishing. This is an example of
A) predation.
B) adaptive radiation.
C) warning coloration.
D) protective resemblance.

Answer 1

B) Adaptive radiation
Adaptive radiation is when organisms diversify rapidly from an ancestral species into multiple new forms.

Answer 2

Answer: The correct answer is Adaptive radiation.

Adaptive radiation can be defined as the diversification of organisms having common ancestor that later on become adapted to different environmental conditions.

Due to different environmental conditions, these organisms evolve and become diversified to more specialized types.

For instance, Darwin's finches on the Galapagos islands evolved with different beak types ( like drilling, cracking, tearing, and fishing) due to availability of different types of food.

Therefore, they are example of adaptive radiation.